diff --git a/src/OneBestFstLoader.cpp b/src/OneBestFstLoader.cpp
index 0e6cc75..6b70a00 100644
--- a/src/OneBestFstLoader.cpp
+++ b/src/OneBestFstLoader.cpp
@@ -92,7 +92,7 @@ std::vector<int> OneBestFstLoader::convertToIntVector(fst::SymbolTable &symbol)
 
   FstAlignOption options;
   for (TokenType::const_iterator i = mToken.begin(); i != mToken.end(); ++i) {
-    std::string token = *i;
+    std::string token = UnicodeLowercase(*i);
     int token_sym = symbol.Find(token);
     if (token_sym == -1) {
       token_sym = symbol.Find(options.symUnk);
diff --git a/src/version.h b/src/version.h
index 7ae5632..53471fa 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,5 +1,5 @@
 #pragma once
 
 #define FSTALIGNER_VERSION_MAJOR 1
-#define FSTALIGNER_VERSION_MINOR 5
-#define FSTALIGNER_VERSION_PATCH 0
+#define FSTALIGNER_VERSION_MINOR 6
+#define FSTALIGNER_VERSION_PATCH 1
diff --git a/test/data/short.aligned.nlp b/test/data/short.aligned.nlp
index 840a2f7..313068d 100644
--- a/test/data/short.aligned.nlp
+++ b/test/data/short.aligned.nlp
@@ -1,7 +1,7 @@
 token|speaker|ts|endTs|punctuation|prepunctuation|case|tags|wer_tags|oldTs|oldEndTs|ali_comment
 <crosstalk>|2|0.0000|0.0000|||LC|[]|[]|||
-Yeah|1|0.0000|0.0000|,||UC|[]|[]|||
-yeah|1|||,||LC|[]|[]|||del
+Yeah|1|||,||UC|[]|[]|||del
+yeah|1|0.0000|0.0000|,||LC|[]|[]|||
 right|1|0.0000|0.0000|.||LC|[]|[]|||
 Yeah|1|||,||UC|[]|[]|||del
 alright|1|0.0000|0.0000|,||LC|[]|[]|||sub(i'll),split_worst
diff --git a/test/fstalign_Test.cc b/test/fstalign_Test.cc
index f2f713d..1077560 100644
--- a/test/fstalign_Test.cc
+++ b/test/fstalign_Test.cc
@@ -256,24 +256,14 @@ TEST_CASE_METHOD(UniqueTestsFixture, "main-standard-composition()") {
     REQUIRE_THAT(result, Contains("WER: INS:0 DEL:2 SUB:2"));
   }
 
-  SECTION("wer (nlp output)") {
-    const auto result = exec(command("wer", approach, "short.ref.nlp", "short.hyp.nlp", sbs_output, nlp_output,
-                                     TEST_SYNONYMS, nullptr, false, -1, "--disable-approx-alignment"));
-    const auto testFile = std::string{TEST_DATA} + "short.aligned.nlp";
-
-    REQUIRE(compareFiles(nlp_output.c_str(), testFile.c_str()));
-    REQUIRE_THAT(result, Contains("WER: 5/31 = 0.1613"));
-    REQUIRE_THAT(result, Contains("WER: INS:0 DEL:2 SUB:2"));
-  }
-
   SECTION("Case Metrics") {
     const auto result = exec(command("wer", approach, "short.ref.nlp", "short.hyp.txt", sbs_output, nlp_output,
                                      TEST_SYNONYMS, nullptr, false, -1, "--record-case-stats"));
     const auto testFile = std::string{TEST_DATA} + "short.aligned.nlp";
 
     REQUIRE(compareFiles(nlp_output.c_str(), testFile.c_str()));
-    REQUIRE_THAT(result, Contains("case WER, (matching words only): Precision:1.0"));
-    REQUIRE_THAT(result, Contains("case WER, (all including substitutions): Precision:0.77"));
+    REQUIRE_THAT(result, Contains("case WER, (matching words only): Precision:0.857143"));
+    REQUIRE_THAT(result, Contains("case WER, (all including substitutions): Precision:0.666667"));
   }
 
   // alignment tests