diff --git a/include/global.h b/include/global.h
index 06bfc99a6f..a6e494f03a 100644
--- a/include/global.h
+++ b/include/global.h
@@ -131,7 +131,7 @@
 
 #define FEATURE_FLAG_ASSERT(flag, id) STATIC_ASSERT(flag > TEMP_FLAGS_END || flag == 0, id)
 
-#if !(defined (NDEBUG)) || DEBUG_AI_DELAY_TIMER
+// NOTE: This uses hardware timers 2 and 3; this will not work during active link connections or with the eReader
 static inline void CycleCountStart()
 {
     REG_TM2CNT_H = 0;
@@ -154,7 +154,6 @@ static inline u32 CycleCountEnd()
     // return result
     return REG_TM2CNT_L | (REG_TM3CNT_L << 16u);
 }
-#endif
 
 struct Coords8
 {