diff --git a/linker/dlfcn.c b/linker/dlfcn.c
index a36b42c..7161455 100644
--- a/linker/dlfcn.c
+++ b/linker/dlfcn.c
@@ -124,7 +124,7 @@
     return 0;
 }
 
-int dladdr(void *addr, Dl_info *info)
+int dladdr(const void *addr, Dl_info *info)
 {
     int ret = 0;