diff --git a/Library/OcAppleKernelLib/CpuidPatches.c b/Library/OcAppleKernelLib/CpuidPatches.c
index cf73149a812eac7a5211b0979c20e3903ecd1577..3d17fb0c2aa467404edbcfb7462af93660b8cddc 100644
--- a/Library/OcAppleKernelLib/CpuidPatches.c
+++ b/Library/OcAppleKernelLib/CpuidPatches.c
@@ -1722,7 +1722,7 @@ PatchProvideCurrentCpuInfo (
     for (Index = L1I; Index < LCACHE_MAX; Index++) {
       *LocationTigerCache++ = 0xC7;
       *LocationTigerCache++ = 0x40;
-      *LocationTigerCache++ = 0x68 + (sizeof (UINT32) * Index);
+      *LocationTigerCache++ = 0x68 + ((UINT8)(sizeof (UINT32)) * Index);
       CopyMem (LocationTigerCache, &CacheSizes[Index], sizeof (CacheSizes[Index]));
       LocationTigerCache += sizeof (CacheSizes[Index]);
       DEBUG ((DEBUG_INFO, "OCAK: Cache size (L%u): %u bytes\n", (Index >= 3) ? (Index - 1) : 1, CacheSizes[Index]));