diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
index b7af49b83dc..365d725679c 100644
--- a/src/hotspot/share/runtime/arguments.cpp
+++ b/src/hotspot/share/runtime/arguments.cpp
@@ -1574,8 +1574,8 @@ void Arguments::set_heap_size() {
         }
       }
 
-      size_t heap_end = HeapBaseMinAddress + MaxHeapSize;
-      size_t max_coop_heap = max_heap_for_compressed_oops();
+      uintptr_t heap_end = HeapBaseMinAddress + MaxHeapSize;
+      uintptr_t max_coop_heap = max_heap_for_compressed_oops();
 
       // Limit the heap size to the maximum possible when using compressed oops
       if (heap_end < max_coop_heap) {