diff --git a/constants.go b/constants.go
index 365f9bf..10d947c 100644
--- a/constants.go
+++ b/constants.go
@@ -20,9 +20,9 @@ const (
 	ConfigPathFlagName = "config-dir"
 	ConfigFileName     = "config.json"
 
-	GRPCClientTypeKey = "OVERFLOW_CLIENT_TYPE"
-	GRPCSessionIDKey  = "OVERFLOW_SESSION_ID"
-	GRPCTargetIDKey   = "OVERFLOW_TARGET_ID"
+	GRPCClientTypeKey = "OVERFLOW_GRPC_CLIENT_TYPE"
+	GRPCSessionIDKey  = "OVERFLOW_GRPC_SESSION_ID"
+	GRPCTargetIDKey   = "OVERFLOW_GRPC_TARGET_ID"
 )
 
 type ClientType int