diff --git a/src/travis/linux-x86_64-install.sh b/src/travis/linux-x86_64-install.sh
index 3ef6fe80..0ce8c811 100755
--- a/src/travis/linux-x86_64-install.sh
+++ b/src/travis/linux-x86_64-install.sh
@@ -12,7 +12,7 @@ du -h gam/gam
 time gam/gam version
 
 GAM_LEGACY_ARCHIVE=gam-$GAMVERSION-$GAMOS-$PLATFORM-legacy.tar.xz
-staticx gam/gam gam/gam-staticx
+$python -OO -m staticx gam/gam gam/gam-staticx
 strip gam/gam-staticx
 rm gam/gam
 cp staticx-gam.sh gam/gam