diff --git a/src/dllmain.c b/src/dllmain.c
index e33135a..65be2d6 100644
--- a/src/dllmain.c
+++ b/src/dllmain.c
@@ -36,6 +36,8 @@ BOOL WINAPI DllMain(HANDLE hDll, DWORD dwReason, LPVOID lpReserved)
 
         if (GetEnvironmentVariable("__COMPAT_LAYER", buf, sizeof(buf)))
         {
+            TRACE("__COMPAT_LAYER = %s\n", buf);
+
             char* s = strtok(buf, " ");
 
             while (s)