diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index 4c6b1cbf8a..b28810e9d8 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -556,7 +556,8 @@ class Keg
   end
 
   def normalize_pod2man_outputs!
-    manpages = Dir[path/"share/man/*/*"]
+    # Only process uncompressed manpages, which end in a digit
+    manpages = Dir[path/"share/man/*/*.[1-9]"]
     generated_regex = /^\.\\"\s*Automatically generated by .*\n/
     manpages.each do |f|
       manpage = Pathname.new(f)