diff --git a/lib/Analysis/PointerTracking.cpp b/lib/Analysis/PointerTracking.cpp
index 2281836..43f4af3 100644
--- a/lib/Analysis/PointerTracking.cpp
+++ b/lib/Analysis/PointerTracking.cpp
@@ -48,7 +48,7 @@
 }
 
 bool PointerTracking::doInitialization(Module &M) {
-  const Type *PTy = PointerType::getUnqual(Type::getInt8Ty(M.getContext()));
+  const Type *PTy = Type::getInt8PtrTy(M.getContext());
 
   // Find calloc(i64, i64) or calloc(i32, i32).
   callocFunc = M.getFunction("calloc");