diff --git a/configure b/configure
index 843d36bb134..a6ca6cba9d8 100755
--- a/configure
+++ b/configure
@@ -600,6 +600,8 @@ $engines_help
 Optional Features:
   --disable-debug          disable building with debugging symbols
   --enable-Werror          treat warnings as errors
+  --enable-release         enable building in release mode (this activates optimizations)
+  --enable-profiling       enable profiling
   --enable-plugins         enable the support for dynamic plugins
   --default-dynamic        make plugins dynamic by default
   --disable-mt32emu        don't enable the integrated MT-32 emulator