diff --git a/expfmt/text_parse.go b/expfmt/text_parse.go
index 6cc03d07..f085a923 100644
--- a/expfmt/text_parse.go
+++ b/expfmt/text_parse.go
@@ -73,8 +73,10 @@ type TextParser struct {
 	// These tell us if the currently processed line ends on '_count' or
 	// '_sum' respectively and belong to a summary/histogram, representing the sample
 	// count and sum of that summary/histogram.
-	currentIsSummaryCount, currentIsSummarySum                      bool
-	currentIsHistogramCount, currentIsHistogramSum                  bool
+	currentIsSummaryCount, currentIsSummarySum     bool
+	currentIsHistogramCount, currentIsHistogramSum bool
+	// These indicate if the metric name from the current line being parsed is inside
+	// braces and if that metric name was found respectively.
 	currentMetricIsInsideBraces, currentMetricInsideBracesIsPresent bool
 }