diff --git a/.travis.yml b/.travis.yml
index fd2fc0265..98498638c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -70,3 +70,4 @@ deploy:
   on:
     tags: true
     all_branches: true
+    condition: $TRAVIS_OSX_IMAGE = xcode6.4
diff --git a/scripts/package-osx.sh b/scripts/package-osx.sh
index 363e57bb0..fef437ee1 100755
--- a/scripts/package-osx.sh
+++ b/scripts/package-osx.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
-if [ -z "$CI_BUILD_TAG" ]
+if [ -z "$TRAVIS_TAG" ]
 then
-    python3 setup.py patch_version --platform=osx
+    python3 setup.py patch_version --platform=osx_$TRAVIS_OSX_IMAGE
 fi
 VERSION=$(python3 -c 'import picard; print(picard.__version__)')