diff --git a/bin/ruby-build b/bin/ruby-build
index 42c65fe4e5..f6d8215996 100755
--- a/bin/ruby-build
+++ b/bin/ruby-build
@@ -572,6 +572,7 @@ build_package_standard() {
 
   if [ "$package_name" == "ruby-trunk" ]; then
     { "$MAKE" update-gems
+      "$MAKE" extract-gems
     } >&4 2>&1
   fi