diff --git a/src/platform/apollolake/include/platform/memory.h b/src/platform/apollolake/include/platform/memory.h
index cefcb52d6f28..844c15b7085d 100644
--- a/src/platform/apollolake/include/platform/memory.h
+++ b/src/platform/apollolake/include/platform/memory.h
@@ -137,7 +137,7 @@
 #define HEAP_RT_COUNT32			128
 #define HEAP_RT_COUNT64			64
 #define HEAP_RT_COUNT128		32
-#define HEAP_RT_COUNT256		64
+#define HEAP_RT_COUNT256		128
 #define HEAP_RT_COUNT512		8
 #define HEAP_RT_COUNT1024		4