diff --git a/app/src/main/java/io/github/sspanak/tt9/db/words/SlowQueryStats.java b/app/src/main/java/io/github/sspanak/tt9/db/words/SlowQueryStats.java
index 95239b66..48fb4620 100644
--- a/app/src/main/java/io/github/sspanak/tt9/db/words/SlowQueryStats.java
+++ b/app/src/main/java/io/github/sspanak/tt9/db/words/SlowQueryStats.java
@@ -21,7 +21,7 @@ public class SlowQueryStats {
 		return language.getId() + "_" + sequence + "_" + wordFilter + "_" + minimumWords;
 	}
 
-	public static void add(String key, int time, String positionsList) {
+	public static void add(Language language, String sequence, String wordFilter, int minimumWords, int time, String positionsList) {
 		if (firstQueryTime == -1) {
 			firstQueryTime = System.currentTimeMillis();
 		}
@@ -32,6 +32,7 @@ public class SlowQueryStats {
 			return;
 		}
 
+		String key = generateKey(language, sequence, wordFilter, minimumWords);
 		slowQueries.put(key, time);
 		if (!resultCache.containsKey(key)) {
 			resultCache.put(key, positionsList.replaceAll("-\\d+,", ""));
diff --git a/app/src/main/java/io/github/sspanak/tt9/db/words/WordStore.java b/app/src/main/java/io/github/sspanak/tt9/db/words/WordStore.java
index 2018ba02..a448803f 100644
--- a/app/src/main/java/io/github/sspanak/tt9/db/words/WordStore.java
+++ b/app/src/main/java/io/github/sspanak/tt9/db/words/WordStore.java
@@ -96,7 +96,7 @@ public class WordStore extends BaseSyncStore {
 
 		printLoadingSummary(sequence, words, longPositionsTime, positionsTime, wordsTime);
 		if (!cancel.isCanceled()) { // do not cache empty results from aborted queries
-			SlowQueryStats.add(SlowQueryStats.generateKey(language, sequence, wordFilter, minWords), (int) (positionsTime + wordsTime), positions);
+			SlowQueryStats.add(language, sequence, wordFilter, minWords, (int) (positionsTime + wordsTime), positions);
 		}
 
 		return words;