diff --git a/cups.gemspec b/cups.gemspec
index 1adfd80..e9d12fa 100755
--- a/cups.gemspec
+++ b/cups.gemspec
@@ -10,6 +10,4 @@ Gem::Specification.new do |s|
   s.files = Dir.glob("{test}/**/*") | ["ext/cups.c", "ext/ruby_cups.h", "ext/extconf.rb"] | Dir.glob("{lib}/**/*")
   s.extensions << "ext/extconf.rb"
   s.homepage = "https://github.com/m0wfo/cups"
-  s.has_rdoc = true
-  s.rubyforge_project = "cups"
 end
diff --git a/ext/ruby_cups.h b/ext/ruby_cups.h
index e8e9097..14c12e2 100755
--- a/ext/ruby_cups.h
+++ b/ext/ruby_cups.h
@@ -2,7 +2,7 @@
 
 // st.h is needed for ST_CONTINUE constant
 #include <ruby.h>
-#include <st.h>
+#include <ruby/st.h>
 
 #ifndef MAXOPTS
   #define MAXOPTS 100