diff --git a/include/malloc.h b/include/malloc.h
index f20e4d3d2a6b90a80a1f3957c93e14b121909bfe..8175c75920cfe0ac9a1158e253f9b3a477cf12da 100644
--- a/include/malloc.h
+++ b/include/malloc.h
@@ -914,6 +914,7 @@ int initf_malloc(void);
 /* Simple versions which can be used when space is tight */
 void *malloc_simple(size_t size);
 
+#pragma GCC visibility push(hidden)
 # if __STD_C
 
 Void_t* mALLOc(size_t);
@@ -945,6 +946,7 @@ int     mALLOPt();
 struct mallinfo mALLINFo();
 # endif
 #endif
+#pragma GCC visibility pop
 
 /*
  * Begin and End of memory area for malloc(), and current "brk"