diff --git a/lib/inline.rb b/lib/inline.rb
index 92840b2..922f55a 100644
--- a/lib/inline.rb
+++ b/lib/inline.rb
@@ -608,7 +608,7 @@ def build
           cmd = cmd.gsub(/-Wl,-soname,\$@/, "-Wl,-soname,#{File.basename so_name}")
 
           # strip off some makefile macros for mingw 1.9
-          cmd = cmd.gsub(/\$\(.*\)/, '') if RUBY_PLATFORM =~ /mingw/
+          cmd = cmd.gsub(/\$(?<par>\((?:[^()]|\g<par>)*\))/, '') if RUBY_PLATFORM =~ /mingw/
 
           cmd += " 2> #{DEV_NULL}" if $TESTING and not $DEBUG