diff --git a/libraries/libstratosphere/source/lmem/impl/lmem_impl_exp_heap.cpp b/libraries/libstratosphere/source/lmem/impl/lmem_impl_exp_heap.cpp
index 3b168682f..021a4344f 100644
--- a/libraries/libstratosphere/source/lmem/impl/lmem_impl_exp_heap.cpp
+++ b/libraries/libstratosphere/source/lmem/impl/lmem_impl_exp_heap.cpp
@@ -284,7 +284,7 @@ namespace ams::lmem::impl {
 
             {
                 /* Create the used block */
-                MemoryRegion used_region{ .start = free_region_front.end, .end = free_region_back.start };
+                MemoryRegion used_region{ .start = reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(block) - sizeof(ExpHeapMemoryBlockHead)), .end = free_region_back.start };
 
                 ExpHeapMemoryBlockHead *used_block = InitializeUsedMemoryBlock(used_region);