diff --git a/rts/eventlog/EventLog.c b/rts/eventlog/EventLog.c
index ef96f3c8801247f9f1325b18bb49c2004d0466ce..f830ec19a08fabbbd267f97be9c353b77c0312e2 100644
--- a/rts/eventlog/EventLog.c
+++ b/rts/eventlog/EventLog.c
@@ -500,6 +500,15 @@ moreCapEventBufs (nat from, nat to)
     for (c = from; c < to; ++c) {
         initEventsBuf(&capEventBuf[c], EVENT_LOG_SIZE, c);
     }
+
+    // The from == 0 already covered in initEventLogging, so we are interested
+    // only in case when we are increasing capabilities number
+    if (from > 0) {
+        for (c = from; c < to; ++c) {
+           postBlockMarker(&capEventBuf[c]);
+        }
+    }
+
 }