diff --git a/desmume/src/MMU_timing.h b/desmume/src/MMU_timing.h
index beb0a0ed5..5c5df97a5 100644
--- a/desmume/src/MMU_timing.h
+++ b/desmume/src/MMU_timing.h
@@ -47,7 +47,7 @@
 	//(SOMETIMES THIS IS A BIG SPEED HIT!)
 
 	// enables emulation of code fetch waits.
-//#define ACCOUNT_FOR_CODE_FETCH_CYCLES
+#define ACCOUNT_FOR_CODE_FETCH_CYCLES
 
 	// makes access to DTCM (arm9 only) fast.
 #define ACCOUNT_FOR_DATA_TCM_SPEED