diff --git a/muffin/muffin.SlackBuild b/muffin/muffin.SlackBuild
index 110c7fc..7f292a2 100644
--- a/muffin/muffin.SlackBuild
+++ b/muffin/muffin.SlackBuild
@@ -24,7 +24,7 @@
 
 PRGNAM=muffin
 VERSION=${VERSION:-4.2.2}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_csb}
 
 if [ -z "$ARCH" ]; then
@@ -71,6 +71,8 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+sed -i "s|--warn-error||g" src/Makefile.am
+
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
 ./autogen.sh \