diff --git a/tests/stdlib/tstrutil.nim b/tests/stdlib/tstrutil.nim
index b15bf0e688..b97f2b1e96 100644
--- a/tests/stdlib/tstrutil.nim
+++ b/tests/stdlib/tstrutil.nim
@@ -78,6 +78,7 @@ assert(editDistance("prefix__hallo_suffix", "prefix__ha_suffix") == 3)
 assert(editDistance("prefix__hallo_suffix", "prefix") == 14)
 assert(editDistance("prefix__hallo_suffix", "suffix") == 14)
 assert(editDistance("prefix__hallo_suffix", "prefix__hao_suffix") == 2)
+assert(editDistance("main", "malign") == 2)
 
 assert "/1/2/3".rfind('/') == 4
 assert "/1/2/3".rfind('/', 1) == 0