diff --git a/h-raylib.cabal b/h-raylib.cabal
index f09bdbc..795e632 100644
--- a/h-raylib.cabal
+++ b/h-raylib.cabal
@@ -221,6 +221,7 @@ library
     c-sources:
       lib/rglfw.m
       lib/rl_bindings.c
+      lib/rl_internal.c
       raylib/src/raudio.c
       raylib/src/rcore.c
       raylib/src/rmodels.c