diff --git a/src/hyperv/hyperv_driver.c b/src/hyperv/hyperv_driver.c
index 0378478fc7..ac10f86b82 100644
--- a/src/hyperv/hyperv_driver.c
+++ b/src/hyperv/hyperv_driver.c
@@ -1375,11 +1375,9 @@ hypervDomainSendKey(virDomainPtr domain, unsigned int codeset,
         }
     }
 
-    if (virAsprintf(&selector,
-                "CreationClassName=Msvm_Keyboard&DeviceID=%s&"
-                "SystemCreationClassName=Msvm_ComputerSystem&"
-                "SystemName=%s", keyboard->data.common->DeviceID, uuid_string) < 0)
-        goto cleanup;
+    selector = g_strdup_printf("CreationClassName=Msvm_Keyboard&DeviceID=%s&"
+                               "SystemCreationClassName=Msvm_ComputerSystem&"
+                               "SystemName=%s", keyboard->data.common->DeviceID, uuid_string);
 
     /* press the keys */
     for (i = 0; i < nkeycodes; i++) {
@@ -1461,8 +1459,7 @@ hypervDomainSetMemoryFlags(virDomainPtr domain, unsigned long memory,
 
     virCheckFlags(0, -1);
 
-    if (virAsprintf(&memory_str, "%lu", memory_mb) < 0)
-        goto cleanup;
+    memory_str = g_strdup_printf("%lu", memory_mb);
 
     virUUIDFormat(domain->uuid, uuid_string);
 
diff --git a/src/hyperv/hyperv_wmi.c b/src/hyperv/hyperv_wmi.c
index a70093700a..7d56677588 100644
--- a/src/hyperv/hyperv_wmi.c
+++ b/src/hyperv/hyperv_wmi.c
@@ -439,8 +439,7 @@ hypervCreateInvokeXmlDoc(hypervInvokeParamsListPtr params, WsXmlDocH *docRoot)
     char *method = NULL;
     WsXmlNodeH xmlNodeMethod = NULL;
 
-    if (virAsprintf(&method, "%s_INPUT", params->method) < 0)
-        goto cleanup;
+    method = g_strdup_printf("%s_INPUT", params->method);
 
     *docRoot = ws_xml_create_doc(NULL, method);
     if (*docRoot == NULL) {
@@ -844,9 +843,8 @@ hypervInvokeMethod(hypervPrivate *priv, hypervInvokeParamsListPtr params,
             params->method, paramsDocRoot);
 
     /* check return code of invocation */
-    if (virAsprintf(&returnValue_xpath, "/s:Envelope/s:Body/p:%s_OUTPUT/p:ReturnValue",
-            params->method) < 0)
-        goto cleanup;
+    returnValue_xpath = g_strdup_printf("/s:Envelope/s:Body/p:%s_OUTPUT/p:ReturnValue",
+                                        params->method);
 
     returnValue = ws_xml_get_xpath_value(response, returnValue_xpath);
     if (!returnValue) {
@@ -860,12 +858,9 @@ hypervInvokeMethod(hypervPrivate *priv, hypervInvokeParamsListPtr params,
         goto cleanup;
 
     if (returnCode == CIM_RETURNCODE_TRANSITION_STARTED) {
-        if (virAsprintf(&jobcode_instance_xpath,
-                    "/s:Envelope/s:Body/p:%s_OUTPUT/p:Job/a:ReferenceParameters/"
-                    "w:SelectorSet/w:Selector[@Name='InstanceID']",
-                    params->method) < 0) {
-            goto cleanup;
-        }
+        jobcode_instance_xpath = g_strdup_printf("/s:Envelope/s:Body/p:%s_OUTPUT/p:Job/a:ReferenceParameters/"
+                                                 "w:SelectorSet/w:Selector[@Name='InstanceID']",
+                                                 params->method);
 
         instanceID = ws_xml_get_xpath_value(response, jobcode_instance_xpath);
         if (!instanceID) {
@@ -1331,10 +1326,8 @@ hypervInvokeMsvmComputerSystemRequestStateChange(virDomainPtr domain,
 
     virUUIDFormat(domain->uuid, uuid_string);
 
-    if (virAsprintf(&selector, "Name=%s&CreationClassName=Msvm_ComputerSystem",
-                    uuid_string) < 0 ||
-        virAsprintf(&properties, "RequestedState=%d", requestedState) < 0)
-        goto cleanup;
+    selector = g_strdup_printf("Name=%s&CreationClassName=Msvm_ComputerSystem", uuid_string);
+    properties = g_strdup_printf("RequestedState=%d", requestedState);
 
     if (priv->wmiVersion == HYPERV_WMI_VERSION_V1)
         resourceUri = MSVM_COMPUTERSYSTEM_V1_RESOURCE_URI;