diff --git a/libraries/girara/girara.SlackBuild b/libraries/girara/girara.SlackBuild
index 582b955f12..49ddebe1c7 100644
--- a/libraries/girara/girara.SlackBuild
+++ b/libraries/girara/girara.SlackBuild
@@ -82,8 +82,8 @@ CXXFLAGS="$SLKCFLAGS" \
     --prefix /usr \
     --buildtype=plain \
 	 build
-
-DESTDIR="$PKG" ninja -C build install
+"${NINJA:=ninja}"
+DESTDIR="$PKG" $NINJA -C build install
 
 # strip it, strip it good
 strip $PKG/usr/lib$LIBDIRSUFFIX/*.so.*.*