diff --git a/cafe/coreinit/exports.def b/cafe/coreinit/exports.def
index dd1aa20..c76530d 100644
--- a/cafe/coreinit/exports.def
+++ b/cafe/coreinit/exports.def
@@ -129,6 +129,7 @@ MEMGetGroupIDForExpHeap
 MEMGetSizeForMBlockExpHeap
 MEMGetGroupIDForMBlockExpHeap
 MEMGetAllocDirForMBlockExpHeap
+MEMVisitAllocatedForExpHeap
 
 // coreinit/fastcondition.h
 OSFastCond_Init
diff --git a/include/coreinit/memexpheap.h b/include/coreinit/memexpheap.h
index d8cb077..5323f6e 100644
--- a/include/coreinit/memexpheap.h
+++ b/include/coreinit/memexpheap.h
@@ -16,6 +16,9 @@ typedef struct MEMExpHeap MEMExpHeap;
 typedef struct MEMExpHeapBlock MEMExpHeapBlock;
 typedef struct MEMExpHeapBlockList MEMExpHeapBlockList;
 
+typedef void (*MEMExpHeapBlockVisitor)(void *block, MEMHeapHandle heap,
+                                       void *context);
+
 typedef enum MEMExpHeapMode
 {
    MEM_EXP_HEAP_MODE_FIRST_FREE     = 0,
@@ -123,6 +126,11 @@ MEMGetGroupIDForMBlockExpHeap(void *block);
 MEMExpHeapDirection
 MEMGetAllocDirForMBlockExpHeap(void *block);
 
+void
+MEMVisitAllocatedForExpHeap(MEMHeapHandle heap,
+                            MEMExpHeapBlockVisitor callback,
+                            void *context);
+
 #ifdef __cplusplus
 }
 #endif