diff --git a/src/xenia/core/memory.cc b/src/xenia/core/memory.cc
index 6ca33f8b4..bc507faca 100644
--- a/src/xenia/core/memory.cc
+++ b/src/xenia/core/memory.cc
@@ -199,7 +199,7 @@ uint32_t xe_memory_search_aligned(xe_memory_ref memory, size_t start,
 
 uint32_t xe_memory_heap_alloc(
     xe_memory_ref memory, uint32_t base_address, uint32_t size,
-    uint32_t flags) {
+    uint32_t flags, uint32_t alignment) {
   XEASSERT(flags == 0);
 
   // If we were given a base address we are outside of the normal heap and
@@ -207,7 +207,7 @@ uint32_t xe_memory_heap_alloc(
   if (!base_address) {
     // Normal allocation from the managed heap.
     XEIGNORE(xe_mutex_lock(memory->heap_mutex));
-    uint8_t* p = (uint8_t*)mspace_malloc(memory->heap, size);
+    uint8_t* p = (uint8_t*)mspace_memalign(memory->heap, alignment, size);
     XEIGNORE(xe_mutex_unlock(memory->heap_mutex));
     if (!p) {
       return 0;
diff --git a/src/xenia/core/memory.h b/src/xenia/core/memory.h
index 4561b68d9..5f2e69297 100644
--- a/src/xenia/core/memory.h
+++ b/src/xenia/core/memory.h
@@ -51,7 +51,8 @@ enum {
 };
 
 uint32_t xe_memory_heap_alloc(xe_memory_ref memory, uint32_t base_address,
-                              uint32_t size, uint32_t flags);
+                              uint32_t size, uint32_t flags,
+                              uint32_t alignment = 0x20);
 int  xe_memory_heap_free(xe_memory_ref memory, uint32_t addr, uint32_t size);
 
 bool xe_memory_is_valid(xe_memory_ref memory, uint32_t address);
diff --git a/src/xenia/kernel/modules/xboxkrnl/xboxkrnl_memory.cc b/src/xenia/kernel/modules/xboxkrnl/xboxkrnl_memory.cc
index 7174b2f6c..b5aaee7aa 100644
--- a/src/xenia/kernel/modules/xboxkrnl/xboxkrnl_memory.cc
+++ b/src/xenia/kernel/modules/xboxkrnl/xboxkrnl_memory.cc
@@ -234,7 +234,7 @@ uint32_t xeMmAllocatePhysicalMemoryEx(
   // Allocate.
   uint32_t flags = 0;
   uint32_t base_address = xe_memory_heap_alloc(
-      state->memory(), 0, adjusted_size, flags);
+      state->memory(), 0, adjusted_size, flags, alignment);
   if (!base_address) {
     // Failed - assume no memory available.
     return 0;