diff --git a/audio/ngjackspa/ngjackspa.SlackBuild b/audio/ngjackspa/ngjackspa.SlackBuild
index 15563e919d..a0e883685d 100644
--- a/audio/ngjackspa/ngjackspa.SlackBuild
+++ b/audio/ngjackspa/ngjackspa.SlackBuild
@@ -74,7 +74,7 @@ sed -i -e 's,-m 0755,-s &,' Makefile
 DOCDIR=/usr/doc/$PRGNAM-$VERSION
 
 make \
-  CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" \
+  CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS -std=c++11" \
   docdir=$DOCDIR \
   prefix=/usr \
   mandir=/usr/man \