diff --git a/completions/rbenv.zsh b/completions/rbenv.zsh
index f1a41ad..4739ac1 100644
--- a/completions/rbenv.zsh
+++ b/completions/rbenv.zsh
@@ -1,3 +1,7 @@
+if [[ ! -o interactive ]]; then
+    return
+fi
+
 compctl -K _rbenv rbenv
 
 _rbenv() {