diff --git a/ext/bg/js/dictionary.js b/ext/bg/js/dictionary.js
index 843d05f1..6df77d73 100644
--- a/ext/bg/js/dictionary.js
+++ b/ext/bg/js/dictionary.js
@@ -175,7 +175,7 @@ function dictTermsGroup(definitions, dictionaries) {
 function dictTermsMergeBySequence(definitions, mainDictionary) {
     const definitionsBySequence = {'-1': []};
     for (const definition of definitions) {
-        if (mainDictionary === definition.dictionary && definition.sequence > 0) {
+        if (mainDictionary === definition.dictionary && definition.sequence >= 0) {
             if (!definitionsBySequence[definition.sequence]) {
                 definitionsBySequence[definition.sequence] = {
                     reasons: definition.reasons,