diff --git a/graylog-metrics/2.3/graylog_input_metrics-0.4.0.mkp b/graylog-metrics/2.3/graylog_input_metrics-0.4.0.mkp
deleted file mode 100755
index 3a5b238..0000000
Binary files a/graylog-metrics/2.3/graylog_input_metrics-0.4.0.mkp and /dev/null differ
diff --git a/graylog-metrics/2.3/graylog_input_metrics-0.4.1.mkp b/graylog-metrics/2.3/graylog_input_metrics-0.4.1.mkp
new file mode 100755
index 0000000..f8047d6
Binary files /dev/null and b/graylog-metrics/2.3/graylog_input_metrics-0.4.1.mkp differ
diff --git a/graylog-metrics/2.3/local/share/check_mk/checks/graylog_input_metrics b/graylog-metrics/2.3/local/share/check_mk/checks/graylog_input_metrics
index 21dafd1..f28aded 100644
--- a/graylog-metrics/2.3/local/share/check_mk/checks/graylog_input_metrics
+++ b/graylog-metrics/2.3/local/share/check_mk/checks/graylog_input_metrics
@@ -36,10 +36,11 @@ def inventory_graylog_input_metrics(parsed):
 
 
 def check_graylog_input_metrics(item, params, parsed):
-#    if parsed is None: return
-
     item_id = item.split()[-1][1:-1]
-    input_info = parsed[item_id]
+    input_info = parsed.get(item_id)
+    if not input_info:
+        return
+
     input_state = input_info["input_state"]
 
     state = 1
@@ -60,11 +61,12 @@ def check_graylog_input_metrics(item, params, parsed):
         ("rs_m5_rate",  "rs_m5_rate",  "/5min",  get_bytes_human_readable, ""),
         ("rs_m15_rate", "rs_m15_rate", "/15min", get_bytes_human_readable, ""),
     ]:
-
-        value = parsed[item_id][key]
+        value = input_info[key]
         value = round(value, 2)
+
         rate_upper = params.get(key, {}).get("%s_upper" % key, (None, None))
         rate_lower = params.get(key, {}).get("%s_lower" % key, (None, None))
+
         yield check_levels(
             value,
             dsname,