diff --git a/include/sc2api/sc2_unit.h b/include/sc2api/sc2_unit.h
index 8c6c31bc..006a8a66 100644
--- a/include/sc2api/sc2_unit.h
+++ b/include/sc2api/sc2_unit.h
@@ -93,6 +93,8 @@ class Unit {
 
     //! Unit cloak state.
     enum CloakState {
+        //! Under the fog, so unknown whether it's cloaked or not.
+        CloakedUnknown = 0,
         //! Cloaked, invisible to enemies until detected.
         Cloaked = 1,
         //! Cloaked enemy, but detected.
diff --git a/src/sc2api/sc2_proto_to_pods.cc b/src/sc2api/sc2_proto_to_pods.cc
index 8c8f7c9b..2aa9d065 100644
--- a/src/sc2api/sc2_proto_to_pods.cc
+++ b/src/sc2api/sc2_proto_to_pods.cc
@@ -149,6 +149,7 @@ bool Convert(const SC2APIProtocol::Alliance& alliance_proto, Unit::Alliance& all
 
 bool Convert(const SC2APIProtocol::CloakState& cloak_proto, Unit::CloakState& cloak) {
     switch (cloak_proto) {
+        case SC2APIProtocol::CloakState::CloakedUnknown:  cloak = Unit::CloakedUnknown; return true;
         case SC2APIProtocol::CloakState::Cloaked:         cloak = Unit::Cloaked; return true;
         case SC2APIProtocol::CloakState::CloakedDetected: cloak = Unit::CloakedDetected; return true;
         case SC2APIProtocol::CloakState::NotCloaked:      cloak = Unit::NotCloaked; return true;