diff --git a/libraries/dbus-sharp/dbus-sharp.SlackBuild b/libraries/dbus-sharp/dbus-sharp.SlackBuild
index 8c0501d7f3..d052ca551d 100644
--- a/libraries/dbus-sharp/dbus-sharp.SlackBuild
+++ b/libraries/dbus-sharp/dbus-sharp.SlackBuild
@@ -24,7 +24,7 @@
 
 PRGNAM=dbus-sharp
 VERSION=${VERSION:-0.8.1}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -77,6 +77,7 @@ find -L . \
 # We will fix the pkgconfig location on 64bit later.
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
+GMCS=/usr/bin/mcs \
 ./autogen.sh \
   --prefix=/usr \
   --libdir=/usr/lib \