diff --git a/build/builder.go b/build/builder.go
index 82aba3be..fa666821 100644
--- a/build/builder.go
+++ b/build/builder.go
@@ -249,8 +249,8 @@ type Builder struct {
 	docChecker   zoekt.DocChecker
 	size         int
 
-	parserMap ctags.ParserMap
-	building  sync.WaitGroup
+	parserFactory ctags.ParserFactory
+	building sync.WaitGroup
 
 	errMu      sync.Mutex
 	buildError error
@@ -563,7 +563,7 @@ func NewBuilder(opts Options) (*Builder, error) {
 		finishedShards: map[string]string{},
 	}
 
-	parserMap, err := ctags.NewParserMap(
+	parserFactory, err := ctags.NewParserFactory(
 		ctags.ParserBinMap{
 			ctags.UniversalCTags: b.opts.CTagsPath,
 			ctags.ScipCTags:      b.opts.ScipCTagsPath,
@@ -576,7 +576,7 @@ func NewBuilder(opts Options) (*Builder, error) {
 		return nil, err
 	}
 
-	b.parserMap = parserMap
+	b.parserFactory = parserFactory
 
 	b.shardLogger = &lumberjack.Logger{
 		Filename:   filepath.Join(opts.IndexDir, "zoekt-builder-shard-log.tsv"),
@@ -1021,7 +1021,7 @@ func sortDocuments(todo []*zoekt.Document) {
 
 func (b *Builder) buildShard(todo []*zoekt.Document, nextShardNum int) (*finishedShard, error) {
 	if !b.opts.DisableCTags && (b.opts.CTagsPath != "" || b.opts.ScipCTagsPath != "") {
-		err := ctagsAddSymbolsParserMap(todo, b.opts.LanguageMap, b.parserMap)
+		err := parseSymbols(todo, b.opts.LanguageMap, b.parserFactory)
 		if b.opts.CTagsMustSucceed && err != nil {
 			return nil, err
 		}
diff --git a/build/ctags.go b/build/ctags.go
index 7308371f..074ba53a 100644
--- a/build/ctags.go
+++ b/build/ctags.go
@@ -42,7 +42,7 @@ func normalizeLanguage(filetype string) string {
 	return normalized
 }
 
-func ctagsAddSymbolsParserMap(todo []*zoekt.Document, languageMap ctags.LanguageMap, parserMap ctags.ParserMap) error {
+func parseSymbols(todo []*zoekt.Document, languageMap ctags.LanguageMap, parserFactory ctags.ParserFactory) error {
 	monitor := newMonitor()
 	defer monitor.Stop()
 
@@ -65,7 +65,7 @@ func ctagsAddSymbolsParserMap(todo []*zoekt.Document, languageMap ctags.Language
 			parserKind = ctags.UniversalCTags
 		}
 
-		parser := parserMap[parserKind]
+		parser := parserFactory[parserKind]
 		if parser == nil {
 			// this happens if CTagsMustSucceed is false and we didn't find the binary
 			continue
diff --git a/ctags/parser_map.go b/ctags/parser_map.go
index fb601617..73f235bd 100644
--- a/ctags/parser_map.go
+++ b/ctags/parser_map.go
@@ -60,11 +60,11 @@ func StringToParser(str string) CTagsParserType {
 	}
 }
 
-type ParserMap map[CTagsParserType]Parser
+type ParserFactory map[CTagsParserType]Parser
 type ParserBinMap map[CTagsParserType]string
 
-func NewParserMap(bins ParserBinMap, languageMap LanguageMap, cTagsMustSucceed bool) (ParserMap, error) {
-	parsers := make(ParserMap)
+func NewParserFactory(bins ParserBinMap, languageMap LanguageMap, cTagsMustSucceed bool) (ParserFactory, error) {
+	parsers := make(ParserFactory)
 
 	requiredTypes := []CTagsParserType{UniversalCTags}
 	for _, parserType := range languageMap {
@@ -81,7 +81,7 @@ func NewParserMap(bins ParserBinMap, languageMap LanguageMap, cTagsMustSucceed b
 		}
 
 		if err := checkBinary(parserType, bin); err != nil && cTagsMustSucceed {
-			return nil, fmt.Errorf("ctags.NewParserMap: %v", err)
+			return nil, fmt.Errorf("ctags.NewParserFactory: %v", err)
 		}
 
 		parsers[parserType] = NewParser(bin)