diff --git a/include/m/m_allocator.h b/include/m/m_allocator.h
index 1930e9ca..e4f2a175 100644
--- a/include/m/m_allocator.h
+++ b/include/m/m_allocator.h
@@ -24,7 +24,7 @@ public:
     void destroyHeap();
     s32 adjustFrmHeap();
     s32 adjustExpHeap();
-    s32 createNewTempFrmHeap(s32 size, EGG::Heap *newHeap, char *heapName, s32 align, u32 unk);
+    bool createNewTempFrmHeap(s32 size, EGG::Heap *newHeap, char *heapName, s32 align, u32 unk);
     void adjustFrmHeapRestoreCurrent();
     static void *allocOnHeap(u32 size, mHeapAllocator_c *allocator);
 };
diff --git a/src/m/m_allocator.cpp b/src/m/m_allocator.cpp
index a4f2c05b..e03651df 100644
--- a/src/m/m_allocator.cpp
+++ b/src/m/m_allocator.cpp
@@ -84,7 +84,7 @@ s32 mHeapAllocator_c::adjustExpHeap() {
     return mHeap::adjustExpHeap(static_cast<EGG::ExpHeap *>(getHeapOfKind(heap, EGG::Heap::HEAP_KIND_EXPANDED)));
 }
 
-s32 mHeapAllocator_c::createNewTempFrmHeap(s32 size, EGG::Heap *newHeap, char *heapName, s32 align, u32 attrs) {
+bool mHeapAllocator_c::createNewTempFrmHeap(s32 size, EGG::Heap *newHeap, char *heapName, s32 align, u32 attrs) {
     if (!replaceWithNewFrmHeap(size, newHeap, heapName, align, attrs)) {
         return false;
     }