diff --git a/cores/esp8266/umm_malloc/umm_malloc.c b/cores/esp8266/umm_malloc/umm_malloc.c
index 189892a22..a0a672447 100644
--- a/cores/esp8266/umm_malloc/umm_malloc.c
+++ b/cores/esp8266/umm_malloc/umm_malloc.c
@@ -971,6 +971,10 @@ void ICACHE_FLASH_ATTR *umm_info( void *ptr, int force ) {
 
   unsigned short int blockNo = 0;
 
+  if (umm_heap == NULL) {
+      umm_init();
+  }
+
   /* Protect the critical section... */
   UMM_CRITICAL_ENTRY();