diff --git a/src/config.h b/src/config.h
index 2970e918c..67ff5b9ba 100644
--- a/src/config.h
+++ b/src/config.h
@@ -55,7 +55,7 @@
 /**
  * Size of heap
  */
-#define CONFIG_MEM_HEAP_AREA_SIZE (5 * 1024 + 512)
+#define CONFIG_MEM_HEAP_AREA_SIZE (16 * 1024)
 
 /**
  * Log2 of maximum possible offset in the heap