diff --git a/gem_install.sh b/gem_install.sh
index 48cdae5..cd533c4 100644
--- a/gem_install.sh
+++ b/gem_install.sh
@@ -227,7 +227,7 @@ Find.find(File.join(options.buildroot, gemdir)) do |fname|
   if File.file?(fname) && File.executable?(fname)
     next if fname =~ /\.so$/
     GILogger.info "Looking at #{fname}"
-    patchfile(fname, /^(#!\s*.*?)(\s+-.*)?$/, "#!#{ruby} \2")
+    patchfile(fname, /^(#!\s*.*(?:rub|rbx).*?)(\s+-.*)?$/, "#!#{ruby} \\2")
   else
     next
   end
diff --git a/ruby-common.changes b/ruby-common.changes
index ef77603..94cf639 100644
--- a/ruby-common.changes
+++ b/ruby-common.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat May  2 11:55:31 UTC 2015 - mrueckert@suse.de
+
+- Fix patching of the shebang line
+
 -------------------------------------------------------------------
 Thu Apr 16 21:45:29 UTC 2015 - mrueckert@suse.de