diff --git a/lib/malloc.c b/lib/malloc.c
index 75e8ef97..701b9b39 100755
--- a/lib/malloc.c
+++ b/lib/malloc.c
@@ -3,7 +3,7 @@
      
      #include <sys/types.h>
      
-     void *malloc ();
+     void *malloc (size_t n);
      
      /* Allocate an N-byte block of memory from the heap.
         If N is zero, allocate a 1-byte block.  */