diff --git a/tests/init.test b/tests/init.test
index 19fd00e..2c6c3ef 100755
--- a/tests/init.test
+++ b/tests/init.test
@@ -193,7 +193,8 @@ set_ssh_keys_body() {
 set_ssh_keys_gcp_body() {
 	fake_bin getent <<-EOF
 		#!/bin/sh
-		echo "alpine:x:1000:1000:Linux User,,,:/home/alpine:/bin/sh"
+		echo "alpine:x:1000:1000:Linux User,,,:/home/alpine:/bin/sh" |
+			grep "^$1:"
 	EOF
 	fake_metadata_gcp <<-EOF
 		project: