diff --git a/rename-e-smith-pkg.sh b/rename-e-smith-pkg.sh
index c7caa0a..c552d53 100755
--- a/rename-e-smith-pkg.sh
+++ b/rename-e-smith-pkg.sh
@@ -279,13 +279,13 @@ sed -i "/%description/i Provides: $SOURCEPKG" "$TARGETPKG.spec"
 
 # package specific changes
 if [[ $TARGETPKG == "smeserver-grub" ]] ; then
-  sed -i '/Source1:/d' "$TARGETPKG.spec"
-  sed -i '/Source2:/d' "$TARGETPKG.spec"
-  sed -i '/SME: 12359/i - Remove Source1 & Source2' "$TARGETPKG.spec"
+  sed -i '/^Source1:/d' "$TARGETPKG.spec"
+  sed -i '/^Source2:/d' "$TARGETPKG.spec"
+  sed -i '/\[SME: 12359\]/a - Remove Source1 & Source2' "$TARGETPKG.spec"
 fi
 if [[ $TARGETPKG == "smeserver-lib" ]] ; then
   sed -i '/mkdir *e-smith-lib-update/d' "$TARGETPKG.spec"
-  sed -i '/SME: 12359/i - Remove create e-smith-lib-update event' "$TARGETPKG.spec"
+  sed -i '/\[SME: 12359\]/a - Remove create e-smith-lib-update event' "$TARGETPKG.spec"
 fi
 
 # tell git about the changes