diff --git a/.travis.yml b/.travis.yml
index 15cbd889..2b03e199 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -73,7 +73,7 @@ before_install:
 
 install:
 - cd src
-- pyinstaller --clean -F --distpath=gam $GAMOS-gam.spec
+- python -m PyInstaller --clean -F --distpath=gam $GAMOS-gam.spec
 - gam/gam version
 - export GAMVERSION=`gam/gam version simple`
 - cp LICENSE gam