diff --git a/libraries/c++-gtk-utils/c++-gtk-utils.SlackBuild b/libraries/c++-gtk-utils/c++-gtk-utils.SlackBuild
index 48ad5f32af..992ddcf041 100644
--- a/libraries/c++-gtk-utils/c++-gtk-utils.SlackBuild
+++ b/libraries/c++-gtk-utils/c++-gtk-utils.SlackBuild
@@ -73,7 +73,11 @@ rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
 cd $TMP
 rm -rf $PRGNAM-$VERSION
-tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+if [ -e $CWD/c%2B%2B-gtk-utils-$VERSION.tar.gz ] ; then
+  tar xvf $CWD/c%2B%2B-gtk-utils-$VERSION.tar.gz
+else
+  tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+fi
 cd $PRGNAM-$VERSION
 chown -R root:root .
 find -L . \