diff --git a/bin/release b/bin/release
index f186f313120..ab0ebc620ed 100755
--- a/bin/release
+++ b/bin/release
@@ -132,7 +132,7 @@ def deploy_to_prod
 end
 
 def open_pr_for_int
-  run "brew install hub" unless `brew list -1 | grep -Fqx hub`
+  run "brew install hub" if `brew list -1 | grep -Fqx hub`.empty?
   run "hub pull-request -m \"Deploy #{RC_BRANCH} to int\" -b stages/int"
 end