diff --git a/mk/macosx/build-mg.sh b/mk/macosx/build-mg.sh
index 86d3e620..a0e4eaf6 100755
--- a/mk/macosx/build-mg.sh
+++ b/mk/macosx/build-mg.sh
@@ -195,7 +195,7 @@ if [ "$MAKE_ONLY" -eq "0" ]; then
 		fi
 		rm -f ../MegaGlest*.dmg
 	else
-		EXTRA_CMAKE_OPTIONS="${EXTRA_CMAKE_OPTIONS} -DCPACK_GENERATOR=Bundle -DSINGLE_INSTALL_DIRECTORY=ON -DBUILD_MEGAGLEST_MAP_EDITOR=OFF -DBUILD_MEGAGLEST_MODEL_VIEWER=OFF"
+		EXTRA_CMAKE_OPTIONS="${EXTRA_CMAKE_OPTIONS} -DCPACK_GENERATOR=Bundle -DWANT_SINGLE_INSTALL_DIRECTORY=ON -DBUILD_MEGAGLEST_MAP_EDITOR=OFF -DBUILD_MEGAGLEST_MODEL_VIEWER=OFF"
 		rm -f ../megaglest_editor ../megaglest_g3dviewer ../megaglest_tests
 	fi
 	echo "Calling cmake with EXTRA_CMAKE_OPTIONS = ${EXTRA_CMAKE_OPTIONS}"