diff --git a/t/t7513-interpret-trailers.sh b/t/t7513-interpret-trailers.sh
index 33cf4d1d21..8f1f55be25 100755
--- a/t/t7513-interpret-trailers.sh
+++ b/t/t7513-interpret-trailers.sh
@@ -99,7 +99,7 @@ test_expect_success 'with config option on the command line' '
 	test_cmp expected actual
 '
 
-test_expect_success 'with message that contains only a title' '
+test_expect_success 'with only a title in the message' '
 	cat >expected <<-\EOF &&
 		area: change
 
diff --git a/trailer.c b/trailer.c
index f7d271397f..a92ba53fa5 100644
--- a/trailer.c
+++ b/trailer.c
@@ -748,7 +748,8 @@ static int find_trailer_start(struct strbuf **lines, int count)
 	/*
 	 * Get the start of the trailers by looking starting from the end
 	 * for a line with only spaces before lines with one separator.
-	 * The start cannot be the first line.
+	 * The first line must not be analyzed as the others as it
+	 * should be either the message title or a blank line.
 	 */
 	for (start = count - 1; start >= 1; start--) {
 		if (lines[start]->buf[0] == comment_line_char)