diff --git a/cfg/std.cfg b/cfg/std.cfg
index 2d6008bb9..d6e173262 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -1239,6 +1239,7 @@
   <!-- long int ftell(FILE *stream); -->
   <function name="ftell,std::ftell">
     <noreturn>false</noreturn>
+    <use-retval/>
     <leak-ignore/>
     <arg nr="1">
       <not-null/>