diff --git a/bin/gvm b/bin/gvm
index 60e1175..1e7febb 100755
--- a/bin/gvm
+++ b/bin/gvm
@@ -1,3 +1,4 @@
+#!/bin/bash
 if [[ $1 == "version" ]]; then
   echo "Go Version Manager v$GVM_VERSION"
 elif [[ $1 == "implode" ]]; then