diff --git a/compiler/nimconf.nim b/compiler/nimconf.nim
index a470179bdda1..7c0f6ea2728b 100644
--- a/compiler/nimconf.nim
+++ b/compiler/nimconf.nim
@@ -201,7 +201,7 @@ proc parseAssignment(L: var TLexer, tok: var TToken;
   else:
     processSwitch(s, val, passPP, info, config)
 
-proc readConfigFile(filename: AbsoluteFile; cache: IdentCache;
+proc readConfigFile*(filename: AbsoluteFile; cache: IdentCache;
                     config: ConfigRef): bool =
   var
     L: TLexer