diff --git a/bin/brew b/bin/brew
index 046e8ee29b..d5e85bc14a 100755
--- a/bin/brew
+++ b/bin/brew
@@ -143,7 +143,7 @@ EOS
   esac
 fi
 
-if [ -n "$HOMEBREW_BASH_COMMAND" ] && [ -x "$HOMEBREW_BASH_COMMAND" ]
+if [ -x "$HOMEBREW_BASH_COMMAND" ]
 then
   # source rather than executing directly to ensure the entire file is read into
   # memory before it is run. This makes running a Bash script behave more like