diff --git a/hpcu/main.go b/hpcu/main.go
index 3508f63..68d65b2 100644
--- a/hpcu/main.go
+++ b/hpcu/main.go
@@ -3,10 +3,11 @@ package main
 
 import (
 	"errors"
+	"log"
+
 	"janouch.name/haven/nexgb"
 	"janouch.name/haven/nexgb/xfixes"
 	"janouch.name/haven/nexgb/xproto"
-	"log"
 )
 
 type selectionState struct {
@@ -288,7 +289,8 @@ func handleSelectionRequest(e xproto.SelectionRequestEvent) {
 	}
 
 	if typ == 0 || len(data) > int(setup.MaximumRequestLength)*4-64 ||
-		state.owning == 0 || e.Time < state.owning {
+		state.owning == 0 ||
+		(e.Time != xproto.TimeCurrentTime && e.Time < state.owning) {
 		// TODO: Use the INCR mechanism for large data transfers instead
 		// of refusing the request, or at least use PropModeAppend.
 		//