diff --git a/Core/apu.h b/Core/apu.h
index 44b3d45..c50d5a8 100644
--- a/Core/apu.h
+++ b/Core/apu.h
@@ -7,7 +7,11 @@
 
 #ifdef GB_INTERNAL
 /* Divides nicely and never overflows with 4 channels and 8 (1-8) volume levels */
+#ifdef WIIU
+#define MAX_CH_AMP 0x1FE0 / 4
+#else
 #define MAX_CH_AMP 0x1FE0
+#endif
 #define CH_STEP (MAX_CH_AMP/0xF/8)
 #endif