diff --git a/src/global/Pattern.h b/src/global/Pattern.h
index 9c37eb39ce..1005add22d 100644
--- a/src/global/Pattern.h
+++ b/src/global/Pattern.h
@@ -194,9 +194,6 @@ struct CompactStringVectorWriter {
     commonInitialization();
   }
 
-  CompactStringVectorWriter(CompactStringVectorWriter&&) = default;
-  CompactStringVectorWriter& operator=(CompactStringVectorWriter&&) = default;
-
   void push(const data_type* data, size_t elementSize) {
     AD_CONTRACT_CHECK(!_finished);
     _offsets.push_back(_nextOffset);
diff --git a/src/index/IndexBuilderMain.cpp b/src/index/IndexBuilderMain.cpp
index c75fd5d427..29b11eae9b 100644
--- a/src/index/IndexBuilderMain.cpp
+++ b/src/index/IndexBuilderMain.cpp
@@ -168,7 +168,6 @@ int main(int argc, char** argv) {
   std::optional<ad_utility::MemorySize> stxxlMemory;
   std::optional<ad_utility::MemorySize> parserBufferSize;
   std::optional<ad_utility::VocabularyType> vocabType;
-  // VocabularyEnum vocabType;
   optind = 1;
 
   Index index{ad_utility::makeUnlimitedAllocator<Id>()};
@@ -228,8 +227,9 @@ int main(int argc, char** argv) {
       "Only build the PSO and POS permutations. This is faster, but then "
       "queries with predicate variables are not supported");
   add("vocabulary-type", po::value(&vocabType),
-      "The vocabulary implementation for strings in qlever, can be any of ... "
-      "(TODO joka)");
+      absl::StrCat(
+          "The vocabulary implementation for strings in qlever, can be any of ",
+          ad_utility::VocabularyType::getListOfSupportedValues()));
 
   // Options for the index building process.
   add("stxxl-memory,m", po::value(&stxxlMemory),
@@ -262,11 +262,10 @@ int main(int argc, char** argv) {
   if (parserBufferSize.has_value()) {
     index.parserBufferSize() = parserBufferSize.value();
   }
-  /*
+
   if (vocabType.has_value()) {
     index.getImpl().setVocabularyTypeForIndexBuilding(vocabType.value());
   }
-  */
 
   // If no text index name was specified, take the part of the wordsfile after
   // the last slash.
diff --git a/src/index/IndexImpl.cpp b/src/index/IndexImpl.cpp
index 3ad2e997ec..9d8f89c19f 100644
--- a/src/index/IndexImpl.cpp
+++ b/src/index/IndexImpl.cpp
@@ -1133,8 +1133,6 @@ void IndexImpl::readConfiguration() {
   loadDataMember("num-triples", numTriples_, NumNormalAndInternal{});
   loadDataMember("num-non-literals-text-index", nofNonLiteralsInTextIndex_, 0);
 
-  // TODO<joka921> Comment and also write the configuration.
-  // The default value is the one the used to be the only.
   ad_utility::VocabularyType vocabType(
       ad_utility::VocabularyType::Enum::CompressedOnDisk);
   loadDataMember("vocabulary-type", vocabType, vocabType);
diff --git a/src/index/IndexImpl.h b/src/index/IndexImpl.h
index aaa6d0a1f1..a8828f2236 100644
--- a/src/index/IndexImpl.h
+++ b/src/index/IndexImpl.h
@@ -192,6 +192,8 @@ class IndexImpl {
   std::optional<Id> idOfHasPatternDuringIndexBuilding_;
   std::optional<Id> idOfInternalGraphDuringIndexBuilding_;
 
+  // The vocabulary type that is used (only relevant during index building).
+  // The default is chosen s.t. the compatibility to old index builds.
   ad_utility::VocabularyType vocabularyTypeForIndexBuilding_{
       ad_utility::VocabularyType::Enum::CompressedOnDisk};
 
diff --git a/src/index/vocabulary/VocabularyType.h b/src/index/vocabulary/VocabularyType.h
index 4e65a481df..a6b0eacfb4 100644
--- a/src/index/vocabulary/VocabularyType.h
+++ b/src/index/vocabulary/VocabularyType.h
@@ -32,11 +32,14 @@ class VocabularyType {
           absl::StrCat("\"", description,
                        "\" is not a valid vocabulary type. The currently "
                        "supported vocabulary types are ",
-                       absl::StrJoin(descriptions, ", "))};
-      ;
+                       getListOfSupportedValues())};
     }
     return VocabularyType{static_cast<Enum>(it - descriptions.begin())};
   }
+
+  static std::string getListOfSupportedValues() {
+    return absl::StrJoin(descriptions, ", ");
+  }
   std::string_view toString() const {
     return descriptions.at(static_cast<size_t>(value_));
   }