1 files changed, 1 insertions, 1 deletions
diff --git a/src/dc.c b/src/dc.c
index fa02ac1..bc5765b 100644
--- a/src/dc.c
+++ b/src/dc.c
@@ -627,7 +627,7 @@ int is_slot_early(event *ev, int flasher_pmt_id)
     t_slot = 0.0;
     t_nearby = 0.0;
     for (i = 0; i < MAX_PMTS; i++) {
-        if (!ev->pmt_hits[i].hit) continue;
+        if (!ev->pmt_hits[i].hit || pmts[i].pmt_type != PMT_NORMAL) continue;
 
         /* Require good calibrations.
          *