diff --git a/Library/OcAppleKernelLib/Link.c b/Library/OcAppleKernelLib/Link.c
index 42617dbf..2e594aca 100644
--- a/Library/OcAppleKernelLib/Link.c
+++ b/Library/OcAppleKernelLib/Link.c
@@ -1154,7 +1154,7 @@ InternalProcessSymbolPointers (
     return TRUE;
   }
 
-  NumSymbols = (Section->Size / sizeof (MACH_NLIST_64));
+  NumSymbols = (UINT32)(Section->Size / sizeof (MACH_NLIST_64));
   FirstSym   = Section->Reserved1;
 
   Result = OcOverflowAddU32 (FirstSym, NumSymbols, &OffsetTop);
diff --git a/Library/OcMachoLib/Header.c b/Library/OcMachoLib/Header.c
index b7717231..1737f5c1 100644
--- a/Library/OcMachoLib/Header.c
+++ b/Library/OcMachoLib/Header.c
@@ -1379,7 +1379,7 @@ MachoExpandImage64 (
       }
     }
 
-    CurrentDelta = OriginalDelta + Segment->Size - Segment->FileSize;
+    CurrentDelta = OriginalDelta + (UINT32)(Segment->Size - Segment->FileSize);
   }
 
   if (Strip) {