diff --git a/macosx/Makefile b/macosx/Makefile
index aaf347c32..91243695d 100644
--- a/macosx/Makefile
+++ b/macosx/Makefile
@@ -31,7 +31,7 @@ NMAP_UPDATE_BUILD_DIR = nmap-update-build
 NMAP_UPDATE_STAGING_DIR = nmap-update-root
 
 JHBUILD_PREFIX=$(HOME)/gtk/inst
-export JHBUILD_PREFIX
+JHBUILD_SOURCE=$(HOME)/gtk/source
 PREFIX = /usr/local
 
 # Extra distribution file names
@@ -190,7 +190,7 @@ stage-%: export-tarball
 	rsync -a --files-from "$(JHBUILD_PREFIX)/_jhbuild/manifests/$*" "$(JHBUILD_PREFIX)" $*-root/
 
 stage-zenmap: export-$(ZENMAP_BUILD_DIR)
-	cd $(ZENMAP_BUILD_DIR)/zenmap && install_scripts/macosx/make-bundle.sh
+	cd $(ZENMAP_BUILD_DIR)/zenmap && jhbuild run install_scripts/macosx/make-bundle.sh
 	rm -rf $(ZENMAP_STAGING_DIR)
 	mkdir -p $(ZENMAP_STAGING_DIR)
 	cp -rf $(ZENMAP_BUILD_DIR)/zenmap/dist/Zenmap.app $(ZENMAP_STAGING_DIR)
diff --git a/zenmap/install_scripts/macosx/make-bundle.sh b/zenmap/install_scripts/macosx/make-bundle.sh
index 7f8b25ff1..16188f771 100755
--- a/zenmap/install_scripts/macosx/make-bundle.sh
+++ b/zenmap/install_scripts/macosx/make-bundle.sh
@@ -1,6 +1,8 @@
 #!/bin/sh -e
 set -x
 
+test "x$UNDER_JHBUILD" = "x" && exit 1
+
 # make-bundle.sh
 APP_NAME=Zenmap
 ZENMAP_DIST_DIR=$PWD/dist
@@ -21,11 +23,7 @@ echo "Removing old build."
 rm -rf "$ZENMAP_DIST_DIR" "$ZENMAP_BUILD_DIR"
 
 echo "Building bundle"
-# jhbuild bootstrap
-# jhbuild build meta-gtk-osx-bootstrap
-# jhbuild build meta-gtk-osx-core
-# jhbuild build meta-gtk-osx-python
-jhbuild run gtk-mac-bundler "$SCRIPT_DIR/zenmap.bundle"
+gtk-mac-bundler "$SCRIPT_DIR/zenmap.bundle"
 
 echo "Stripping unoptimized Python libraries"
 #Remove some stuff that is unneeded. This cuts 40M off the installed size.
@@ -45,8 +43,8 @@ find "$BASE/Resources/lib/python2.7" -type f -name '*.pyo' | while read py; do
 done
 
 echo "Building using distutils"
-jhbuild run python setup.py build --executable "/usr/bin/env python"
-jhbuild run python setup.py install vanilla --prefix "$BASE/Resources"
+python setup.py build --executable "/usr/bin/env python"
+python setup.py install vanilla --prefix "$BASE/Resources"
 
 echo "Renaming main Zenmap executable."
 mv $BASE/MacOS/$APP_NAME $BASE/MacOS/zenmap.bin