diff --git a/ext/js/language/dictionary-importer.js b/ext/js/language/dictionary-importer.js
index cd1b796b..98cddf76 100644
--- a/ext/js/language/dictionary-importer.js
+++ b/ext/js/language/dictionary-importer.js
@@ -126,7 +126,7 @@ class DictionaryImporter {
         const {media} = await this._resolveAsyncRequirements(requirements, archive);
 
         // Add dictionary descriptor
-        this._progressNextStep(termList.length + termMetaList.length + kanjiList.length + kanjiMetaList.length + tagList.length);
+        this._progressNextStep(termList.length + termMetaList.length + kanjiList.length + kanjiMetaList.length + tagList.length + media.length);
 
         const summary = this._createSummary(dictionaryTitle, version, index, {prefixWildcardsSupported});
         dictionaryDatabase.bulkAdd('dictionaries', [summary], 0, 1);
diff --git a/test/test-database.js b/test/test-database.js
index 21c653be..e855f07f 100644
--- a/test/test-database.js
+++ b/test/test-database.js
@@ -43,7 +43,14 @@ function createTestDictionaryArchive(dictionary, dictionaryName) {
 
 function createDictionaryImporter(onProgress) {
     const dictionaryImporterMediaLoader = new DatabaseVMDictionaryImporterMediaLoader();
-    return new DictionaryImporter(dictionaryImporterMediaLoader, onProgress);
+    return new DictionaryImporter(dictionaryImporterMediaLoader, (...args) => {
+        const {stepIndex, stepCount, index, count} = args[0];
+        assert.ok(stepIndex < stepCount);
+        assert.ok(index <= count);
+        if (typeof onProgress === 'function') {
+            onProgress(...args);
+        }
+    });
 }