1 files changed, 1 insertions, 0 deletions
diff --git a/src/memalloc.h b/src/memalloc.h
index b9c63da..b9adf76 100644
--- a/src/memalloc.h
+++ b/src/memalloc.h
@@ -35,6 +35,7 @@
  */
 
 #include <stddef.h>
+#include <stdlib.h>
 
 struct stackmark {
 	struct stack_block *stackp;