diff --git a/newlib/libc/stdlib/mallocr.c b/newlib/libc/stdlib/mallocr.c
index 26d1c89cc..6e4bd78d4 100644
--- a/newlib/libc/stdlib/mallocr.c
+++ b/newlib/libc/stdlib/mallocr.c
@@ -1,5 +1,5 @@
 #ifdef MALLOC_PROVIDED
-int _dummy_mallocr = 1;
+int __attribute__((weak)) _dummy_mallocr = 1;
 #else
 /* ---------- To make a malloc.h, start cutting here ------------ */