diff --git a/minimal_heap.h b/minimal_heap.h
index dee7193..d5b8bd9 100644
--- a/minimal_heap.h
+++ b/minimal_heap.h
@@ -4,7 +4,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 
-#define MIHP_USE_HEAP_STRUCTURE_CHECKSUM_VALIDATION 0
+#define MIHP_USE_HEAP_STRUCTURE_CHECKSUM_VALIDATION 1
 #define MIHP_USE_CANARY_VALIDATION 1
 
 #define MIHP_HEAP_CORRUPTION_TYPE_MEMORY_AREA_CHECKSUM_MISMATCH 0
diff --git a/minimal_heap_test.c b/minimal_heap_test.c
index 1d798a4..fb0c76b 100644
--- a/minimal_heap_test.c
+++ b/minimal_heap_test.c
@@ -21,7 +21,7 @@ void MIHP_PlatformOnHeapCorruptionDetected(MIHP_HeapCorruptionInfo info)
 	__debugbreak();
 }
 
-#define NUM_ALLOCATIONS (4096 * 128)
+#define NUM_ALLOCATIONS (4096 * 32)
 
 void* myptrs[NUM_ALLOCATIONS] = { 0 };