diff --git a/src/main/java/com/dabsquared/gitlabjenkins/GitLabMergeRequest.java b/src/main/java/com/dabsquared/gitlabjenkins/GitLabMergeRequest.java
index 7c8294e..f46b311 100644
--- a/src/main/java/com/dabsquared/gitlabjenkins/GitLabMergeRequest.java
+++ b/src/main/java/com/dabsquared/gitlabjenkins/GitLabMergeRequest.java
@@ -95,7 +95,8 @@ public class GitLabMergeRequest extends GitLabRequest {
         private Branch target;
 
         private LastCommit lastCommit;
-
+        
+        private String action;
 
         public ObjectAttributes() {
         }
@@ -240,6 +241,14 @@ public class GitLabMergeRequest extends GitLabRequest {
         public void setLastCommit(LastCommit lastCommit) {
             this.lastCommit = lastCommit;
         }
+        
+        public String getAction() {
+            return action;
+        }
+
+        public void setAction(String action) {
+            this.action = action;
+        }
     }
 
     public static class Branch{
diff --git a/src/main/java/com/dabsquared/gitlabjenkins/GitLabPushTrigger.java b/src/main/java/com/dabsquared/gitlabjenkins/GitLabPushTrigger.java
index b5ae81a..ca6a18f 100644
--- a/src/main/java/com/dabsquared/gitlabjenkins/GitLabPushTrigger.java
+++ b/src/main/java/com/dabsquared/gitlabjenkins/GitLabPushTrigger.java
@@ -23,6 +23,8 @@ import hudson.triggers.TriggerDescriptor;
 import hudson.util.FormValidation;
 import hudson.util.SequentialExecutionQueue;
 import hudson.util.XStream2;
+import hudson.util.ListBoxModel;
+import hudson.util.ListBoxModel.Option;
 
 import java.io.File;
 import java.io.IOException;
@@ -76,7 +78,7 @@ public class GitLabPushTrigger extends Trigger<Job<?, ?>> {
 	private static final Logger LOGGER = Logger.getLogger(GitLabPushTrigger.class.getName());
 	private boolean triggerOnPush = true;
     private boolean triggerOnMergeRequest = true;
-    private boolean triggerOpenMergeRequestOnPush = true;
+    private final String triggerOpenMergeRequestOnPush;
     private boolean ciSkip = true;
     private boolean setBuildDescription = true;
     private boolean addNoteOnMergeRequest = true;
@@ -86,7 +88,7 @@ public class GitLabPushTrigger extends Trigger<Job<?, ?>> {
     private final String excludeBranchesSpec;
 
     @DataBoundConstructor
-    public GitLabPushTrigger(boolean triggerOnPush, boolean triggerOnMergeRequest, boolean triggerOpenMergeRequestOnPush, boolean ciSkip, boolean setBuildDescription, boolean addNoteOnMergeRequest, boolean addVoteOnMergeRequest, boolean allowAllBranches,
+    public GitLabPushTrigger(boolean triggerOnPush, boolean triggerOnMergeRequest, String triggerOpenMergeRequestOnPush, boolean ciSkip, boolean setBuildDescription, boolean addNoteOnMergeRequest, boolean addVoteOnMergeRequest, boolean allowAllBranches,
             String includeBranchesSpec, String excludeBranchesSpec) {
         this.triggerOnPush = triggerOnPush;
         this.triggerOnMergeRequest = triggerOnMergeRequest;
@@ -108,7 +110,7 @@ public class GitLabPushTrigger extends Trigger<Job<?, ?>> {
     	return triggerOnMergeRequest;
     }
 
-    public boolean getTriggerOpenMergeRequestOnPush() {
+    public String getTriggerOpenMergeRequestOnPush() {
         return triggerOpenMergeRequestOnPush;
     }
 
@@ -313,7 +315,7 @@ public class GitLabPushTrigger extends Trigger<Job<?, ?>> {
                     values.put("gitlabActionType", new StringParameterValue("gitlabActionType", "MERGE"));
 
 
-                    LOGGER.log(Level.INFO, "Trying to get name and URL for job: {0} using project {1}", new String[]{job.getName(), getDesc().project.getName()});
+                    LOGGER.log(Level.INFO, "Trying to get name and URL for job: {0}", job.getName());
                     String sourceRepoName = getDesc().getSourceRepoNameDefault(job);
                     String sourceRepoURL = getDesc().getSourceRepoURLDefault(job).toString();
                     
@@ -556,6 +558,12 @@ public class GitLabPushTrigger extends Trigger<Job<?, ?>> {
             gitlab = new GitLab();
             return super.configure(req, formData);
         }
+        
+        public ListBoxModel doFillTriggerOpenMergeRequestOnPushItems(@QueryParameter String triggerOpenMergeRequestOnPush) {
+            return new ListBoxModel(new Option("Never", "never", triggerOpenMergeRequestOnPush.matches("never") ),
+                    new Option("On push to source branch", "source", triggerOpenMergeRequestOnPush.matches("source") ),
+                    new Option("On push to source or target branch", "both", triggerOpenMergeRequestOnPush.matches("both") ));
+        }
 
         private List<String> getProjectBranches(final Job<?, ?> job) throws IOException, IllegalStateException {
             final URIish sourceRepository = getSourceRepoURLDefault(job);
diff --git a/src/main/java/com/dabsquared/gitlabjenkins/GitLabWebHook.java b/src/main/java/com/dabsquared/gitlabjenkins/GitLabWebHook.java
index b44af96..e62318c 100644
--- a/src/main/java/com/dabsquared/gitlabjenkins/GitLabWebHook.java
+++ b/src/main/java/com/dabsquared/gitlabjenkins/GitLabWebHook.java
@@ -399,7 +399,7 @@ public class GitLabWebHook implements UnprotectedRootAction {
 
             trigger.onPost(request);
 
-            if (trigger.getTriggerOpenMergeRequestOnPush()) {
+            if (!trigger.getTriggerOpenMergeRequestOnPush().equals("never")) {
             	// Fetch and build open merge requests with the same source branch
             	buildOpenMergeRequests(trigger, request.getProject_id(), request.getRef());
             }
@@ -416,7 +416,8 @@ public class GitLabWebHook implements UnprotectedRootAction {
 			List<GitlabMergeRequest> mergeRequests = api.instance().retrieve().getAll(tailUrl, GitlabMergeRequest[].class);
 
 			for (org.gitlab.api.models.GitlabMergeRequest mr : mergeRequests) {
-				if (projectRef.endsWith(mr.getSourceBranch()) || projectRef.endsWith(mr.getTargetBranch())) {
+				if (projectRef.endsWith(mr.getSourceBranch()) || 
+                                        (trigger.getTriggerOpenMergeRequestOnPush().equals("both") && projectRef.endsWith(mr.getTargetBranch()))) {
 					LOGGER.log(Level.FINE,
 							"Generating new merge trigger from "
 									+ mr.toString() + "\n source: "
@@ -450,7 +451,6 @@ public class GitLabWebHook implements UnprotectedRootAction {
 					} finally {
 						SecurityContextHolder.getContext().setAuthentication(old);
 					}
-					return;
 				}
 			}
 		} catch (Exception e) {
@@ -470,6 +470,10 @@ public class GitLabWebHook implements UnprotectedRootAction {
         	LOGGER.log(Level.INFO, "Accepted Merge Request, no build started");
             return;
         }
+        if(request.getObjectAttribute().getAction().equals("update")) {
+        	LOGGER.log(Level.INFO, "Existing Merge Request, build will be trigged by buildOpenMergeRequests instead");
+            return;
+        }
         if(request.getObjectAttribute().getLastCommit()!=null) {
             Run mergeBuild = getBuildBySHA1(project, request.getObjectAttribute().getLastCommit().getId(), true);
             if(mergeBuild!=null){
diff --git a/src/main/resources/com/dabsquared/gitlabjenkins/GitLabPushTrigger/config.jelly b/src/main/resources/com/dabsquared/gitlabjenkins/GitLabPushTrigger/config.jelly
index 8a675ec..f41a3fa 100644
--- a/src/main/resources/com/dabsquared/gitlabjenkins/GitLabPushTrigger/config.jelly
+++ b/src/main/resources/com/dabsquared/gitlabjenkins/GitLabPushTrigger/config.jelly
@@ -6,8 +6,8 @@
     <f:entry title="Build on Push Events" field="triggerOnPush">
       <f:checkbox default="true" />
     </f:entry>
-    <f:entry title="Rebuild open Merge Requests on Push Events" field="triggerOpenMergeRequestOnPush">
-      <f:checkbox default="true" />
+    <f:entry title="Rebuild open Merge Requests" field="triggerOpenMergeRequestOnPush">
+      <f:select/>
     </f:entry>
     <f:entry title="Enable [ci-skip]" field="ciSkip">
       <f:checkbox default="true" />