diff --git a/panda/src/putil/config_util.N b/panda/src/putil/config_util.N
index 201ddc1eba..18bd636362 100644
--- a/panda/src/putil/config_util.N
+++ b/panda/src/putil/config_util.N
@@ -4,6 +4,9 @@ ignoremember get_factory
 ignoretype FactoryBase
 ignoretype Factory<TypedWriteable>
 
+forcetype string
+renametype string CString
+
 forcetype DoubleBitMaskNative
 forcetype QuadBitMaskNative