diff --git a/include/stdlib.h b/include/stdlib.h
index 75e442c..877b74d 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -12,6 +12,7 @@ int atexit(void (*function)(void));
 void exit(int status);
 void abort(void);
 
+void *calloc(size_t num, size_t sz);
 void *malloc(size_t sz);
 void free(void *buf);
 
diff --git a/lib/libc/malloc.c b/lib/libc/malloc.c
index 2233ce7..36dafce 100644
--- a/lib/libc/malloc.c
+++ b/lib/libc/malloc.c
@@ -150,6 +150,12 @@ free_large(Header *mem)
     munmap(mem, mem->size);
 }
 
+void *
+calloc(size_t num, size_t sz)
+{
+    return malloc(num*sz);
+}
+
 void *
 malloc(size_t sz)
 {