diff --git a/ClockReceiver/ForceInline.hpp b/ClockReceiver/ForceInline.hpp
index 8bf71a094..d3c3dc512 100644
--- a/ClockReceiver/ForceInline.hpp
+++ b/ClockReceiver/ForceInline.hpp
@@ -9,9 +9,9 @@
 #ifndef ForceInline_hpp
 #define ForceInline_hpp
 
-#ifdef DEBUG
+#ifndef NDEBUG
 
-#define forceinline
+#define forceinline inline
 
 #else