diff --git a/linker/linker.cpp b/linker/linker.cpp
index 98cb178..5452f30 100644
--- a/linker/linker.cpp
+++ b/linker/linker.cpp
@@ -827,7 +827,7 @@
   }
 }
 
-soinfo* do_dlopen(const char* name, int flags, soinfo* caller, const android_dlextinfo* extinfo) {
+soinfo* do_dlopen(const char* name, int flags, soinfo* /*caller*/, const android_dlextinfo* extinfo) {
   if ((flags & ~(RTLD_NOW|RTLD_LAZY|RTLD_LOCAL|RTLD_GLOBAL|RTLD_NOLOAD)) != 0) {
     DL_ERR("invalid flags to dlopen: %x", flags);
     return NULL;