diff --git a/pcsx2/MTVU.cpp b/pcsx2/MTVU.cpp
index c270656864..d19533c1dc 100644
--- a/pcsx2/MTVU.cpp
+++ b/pcsx2/MTVU.cpp
@@ -21,10 +21,12 @@
 
 __aligned16 VU_Thread vu1Thread(CpuVU1, VU1);
 
-#define size_u32(x) (((u32)x+3u)>>2) // Rounds up a size in bytes for size in u32's
 #define MTVU_ALWAYS_KICK 0
 #define MTVU_SYNC_MODE   0
 
+// Rounds up a size in bytes for size in u32's
+static __fi u32 size_u32(u32 x) { return (x + 3) >> 2; }
+
 enum MTVU_EVENT {
 	MTVU_VU_EXECUTE,     // Execute VU program
 	MTVU_VU_WRITE_MICRO, // Write to VU micro-mem