diff --git a/src/openrct2/Version.cpp b/src/openrct2/Version.cpp
index 4b8901d4ad..e40b40dbbc 100644
--- a/src/openrct2/Version.cpp
+++ b/src/openrct2/Version.cpp
@@ -33,7 +33,7 @@ const char gVersionInfoFull[] =
 #ifdef OPENRCT2_BUILD_SERVER
     " provided by " OPENRCT2_BUILD_SERVER
 #endif
-#ifdef DEBUG
+#ifndef NDEBUG
     " (DEBUG)"
 #endif
     ;