diff --git a/app/elastic.py b/app/elastic.py
index 53d40bf..b6cf1b7 100644
--- a/app/elastic.py
+++ b/app/elastic.py
@@ -237,6 +237,12 @@ def buildESEventQuery(queryparams):
         add_match_params(must_terms, must_not_terms,
                 "summary.inference_result.inferences.inference_id", codestring);
 
+    labelstring = queryparams.get('labels', type=str)
+    if labelstring is not None:
+        add_match_params(must_terms, must_not_terms,
+                "summary.inference_result.primary_inference.labels",
+                labelstring)
+
     return {
         'query': {
             'bool': {