diff --git a/service/history/workflow/mutable_state_impl.go b/service/history/workflow/mutable_state_impl.go
index 854b1a196b2..7c244293fa7 100644
--- a/service/history/workflow/mutable_state_impl.go
+++ b/service/history/workflow/mutable_state_impl.go
@@ -4990,7 +4990,7 @@ func (ms *MutableStateImpl) updatePauseInfoSearchAttribute() error {
 	}
 	pausedInfo := make([]string, 0, len(pausedInfoMap))
 	for activityType := range pausedInfoMap {
-		pausedInfo = append(pausedInfo, fmt.Sprintf("property.activityType=%s", activityType))
+		pausedInfo = append(pausedInfo, fmt.Sprintf("property:activityType=%s", activityType))
 	}
 
 	pauseInfoPayload, err := searchattribute.EncodeValue(pausedInfo, enumspb.INDEXED_VALUE_TYPE_KEYWORD_LIST)