diff --git a/src/tests/e2e-test b/src/tests/e2e-test
index ab734cf..89e3d17 100755
--- a/src/tests/e2e-test
+++ b/src/tests/e2e-test
@@ -73,6 +73,9 @@ tmux_check()
 	error "tmux unavailable\n"
 	return 1
     fi
+    if [ "$version" = "tmux master" ]; then
+	return 0
+    fi
     version=${version##tmux }
     version_major=${version%%.*}
     version_minor=${version##*.}