diff --git a/scripts/kvm/vmxcap b/scripts/kvm/vmxcap
index 971ed0e721..6fe66d5f57 100755
--- a/scripts/kvm/vmxcap
+++ b/scripts/kvm/vmxcap
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 #
 # tool for querying VMX capabilities
 #
@@ -275,5 +275,6 @@ controls = [
         ),
     ]
 
-for c in controls:
-    c.show()
+if __name__ == '__main__':
+    for c in controls:
+        c.show()