diff --git a/cabal-tweak-dep-ver b/cabal-tweak-dep-ver
index 137c944..525b786 100755
--- a/cabal-tweak-dep-ver
+++ b/cabal-tweak-dep-ver
@@ -20,7 +20,9 @@ if [ $(echo $CABALFILE | wc -w) -ne 1 ]; then
    exit 1
 fi
 
-if ! grep -q "$DEP.*$OLD" $CABALFILE; then
+BREAK=[^[:alnum:]-]
+
+if ! grep -q "$BREAK$DEP$BREAK[^,]*$OLD" $CABALFILE; then
    echo "$CABALFILE does not match: $DEP $OLD"
    exit 1
 fi
@@ -29,4 +31,4 @@ if [ ! -f $CABALFILE.orig ]; then
     BACKUP=.orig
 fi
 
-sed -i$BACKUP -e "s/\($DEP.*\)$OLD/\1$NEW/g" $CABALFILE
+sed -i$BACKUP -e "s/\($BREAK$DEP$BREAK[^,]*\)$OLD/\1$NEW/g" $CABALFILE
diff --git a/ghc-rpm-macros.spec b/ghc-rpm-macros.spec
index b4f0aa5..e488727 100644
--- a/ghc-rpm-macros.spec
+++ b/ghc-rpm-macros.spec
@@ -3,7 +3,7 @@
 %global macros_file %{_sysconfdir}/rpm/macros.ghc
 
 Name:           ghc-rpm-macros
-Version:        0.15.6
+Version:        0.15.6.1
 Release:        1%{?dist}
 Summary:        Macros for building packages for GHC
 
@@ -64,7 +64,11 @@ EOF
 
 
 %changelog
-* Fri Jun  8 2012 Jens Petersen <petersen@redhat.com> - 0.15.6-1
+* Fri Jun 22 2012 Jens Petersen <petersen@redhat.com> - 0.15.6.1-1
+- cabal-tweak-dep-ver: be careful only to match complete dep name and
+  do not match beyond ","
+
+* Fri Jun 22 2012 Jens Petersen <petersen@redhat.com> - 0.15.6-1
 - cabal-tweak-dep-ver: new script to tweak depends version bounds in .cabal
   from ghc-rpm-macros-0.95.5
 - ghc-dep.sh: only use buildroot package.conf.d if it exists