diff --git a/README.md b/README.md
index 70a9a5e..76dc7fb 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,11 @@ cross-compilation of the basic ros-comm packages.
 
   Using wildcards in bbappend versions part in name depends on
   31bc9af9cd56e7b318924869970e850993fafc5f@bitbake and
-  991cbeedbde8bd25ce08c669b1bfac8b99e33149@bitbake
+  991cbeedbde8bd25ce08c669b1bfac8b99e33149@bitbake.
+
+  octomap-ros and collada-urdf depend on
+  43073569cb67d98c11aa71211d77b566b64f9145@openembedded-core and
+  783fb88f476c94d5d4f4b954f7053464d9a6dff5@openembedded-core.
 
 ## INSTALLATION ##
 
diff --git a/recipes-ros/octomap-ros/octomap-ros_0.3.0.bb b/recipes-ros/octomap-ros/octomap-ros_0.3.0.bb
index c6c5165..d7f1135 100644
--- a/recipes-ros/octomap-ros/octomap-ros_0.3.0.bb
+++ b/recipes-ros/octomap-ros/octomap-ros_0.3.0.bb
@@ -16,5 +16,5 @@ inherit catkin
 do_configure_append() {
 	sed -i -e 's: /usr/lib/liboctomap.so: ${STAGING_LIBDIR}/liboctomap.so:g' \
 	  -e 's: /usr/lib/liboctomath.so: ${STAGING_LIBDIR}/liboctomath.so:g' \
-	  ${S}/build/CMakeFiles/octomap_ros.dir/build.make
+	  ${B}/CMakeFiles/octomap_ros.dir/build.make
 }
diff --git a/recipes-ros/robot-model/collada-urdf_1.10.18.bb b/recipes-ros/robot-model/collada-urdf_1.10.18.bb
index 1c1a495..bf1e707 100644
--- a/recipes-ros/robot-model/collada-urdf_1.10.18.bb
+++ b/recipes-ros/robot-model/collada-urdf_1.10.18.bb
@@ -12,6 +12,6 @@ do_configure_append() {
 	do 
 	sed -i -e 's: /usr/lib/liboctomap.so: ${STAGING_LIBDIR}/liboctomap.so:g' \
 	  -e 's: /usr/lib/liboctomath.so: ${STAGING_LIBDIR}/liboctomath.so:g' \
-	  ${S}/build/CMakeFiles/$f/build.make
+	  ${B}/CMakeFiles/$f/build.make
 	done
 }