diff --git a/ircd/mods.cc b/ircd/mods.cc
index 146fc2aff..590c909fd 100644
--- a/ircd/mods.cc
+++ b/ircd/mods.cc
@@ -47,12 +47,23 @@ ircd::mods::autoload
 extern "C" void *
 __libc_dlsym(void *, const char *);
 
+#ifdef IRCD_MODS_HOOK_DLSYM
 extern "C" void *
 dlsym(void *const handle,
       const char *const symbol)
 {
+	#ifdef RB_DEBUG_MODS_HOOK_DLSYM
+	ircd::log::debug
+	{
+		ircd::mods::log, "handle:%p symbol lookup '%s'",
+		handle,
+		symbol
+	};
+	#endif
+
 	return __libc_dlsym(handle, symbol);
 }
+#endif
 
 //
 // mods::mod