diff --git a/Library/Homebrew/extend/ENV/super.rb b/Library/Homebrew/extend/ENV/super.rb
index 03fe313b47..0fca6cc7a3 100644
--- a/Library/Homebrew/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/ENV/super.rb
@@ -244,7 +244,7 @@ module Superenv
     end
 
     # Don't add `llvm` to library paths; this leads to undesired linkage to LLVM's `libunwind`
-    paths << keg_only_deps.reject { |dep| dep.name.match?(/^llvm(@\d+)?$/) }
+    paths += keg_only_deps.reject { |dep| dep.name.match?(/^llvm(@\d+)?$/) }
                           .map(&:opt_lib)
     paths << (HOMEBREW_PREFIX/"lib")