diff --git a/binfmt/binfmt_globals.c b/binfmt/binfmt_globals.c
index ea01ab025b2..94f98f13d49 100644
--- a/binfmt/binfmt_globals.c
+++ b/binfmt/binfmt_globals.c
@@ -56,7 +56,7 @@
  * protection to simply disable pre-emption when accessing this list.
  */
 
-FAR struct binfmt_s *g_binfmts;
+FAR struct binfmt_s *g_binfmts = NULL;
 
 /****************************************************************************
  * Private Functions
diff --git a/mm/umm_heap/umm_globals.c b/mm/umm_heap/umm_globals.c
index 012aac76315..a00ce3c4ec6 100644
--- a/mm/umm_heap/umm_globals.c
+++ b/mm/umm_heap/umm_globals.c
@@ -64,5 +64,5 @@
 #else
 /* Otherwise, the user heap data structures are in common .bss */
 
-struct mm_heap_s g_mmheap;
+struct mm_heap_s g_mmheap = {};
 #endif