diff --git a/lang/cpp/src/global.h b/lang/cpp/src/global.h
index 38cfd4ca..e303c49a 100644
--- a/lang/cpp/src/global.h
+++ b/lang/cpp/src/global.h
@@ -60,6 +60,7 @@ enum Engine { GpgEngine, GpgSMEngine, GpgConfEngine, UnknownEngine, AssuanEngine
 enum KeyListMode {
     Local = 0x1,
     Extern = 0x2,
+    Locate = 0x3,
     Signatures = 0x4,
     SignatureNotations = 0x8,
     Validate = 0x10,