diff --git a/src/common/mem_utils/mem_utils.c b/src/common/mem_utils/mem_utils.c
index 4c0edb9..9b476e1 100644
--- a/src/common/mem_utils/mem_utils.c
+++ b/src/common/mem_utils/mem_utils.c
@@ -39,7 +39,13 @@ void *wapp_mem_util_align_forward(void *ptr, u64 alignment) {
 }
 
 void *wapp_mem_util_alloc(void *addr, u64 size, MemAccess access, MemAllocFlags flags, MemInitType type) {
-  return mem_util_allocate(addr, size, access, flags);
+  void *output = mem_util_allocate(addr, size, access, flags);
+
+  if (type == WAPP_MEM_INIT_INITIALISED) {
+    memset(output, 0, size);
+  }
+
+  return output;
 }
 
 void wapp_mem_util_free(void *ptr, u64 size) {
diff --git a/src/common/mem_utils/win/mem_utils_win.c b/src/common/mem_utils/win/mem_utils_win.c
index 9c4c30f..bf0f0e5 100644
--- a/src/common/mem_utils/win/mem_utils_win.c
+++ b/src/common/mem_utils/win/mem_utils_win.c
@@ -20,6 +20,11 @@ internal const i32 access_types[] = {
 };
 
 void *mem_util_allocate(void *addr, u64 size, MemAccess access, MemAllocFlags flags) {
+  // Ensure memory is committed if it's meant to be initialised
+  if (type == WAPP_MEM_INIT_INITIALISED) {
+    flags |= WAPP_MEM_ALLOC_COMMIT;
+  }
+
   return VirtualAlloc(addr, (SIZE_T)size, flags, access_types[access]);
 }