diff --git a/cmd/tools/vdoc/tests/vdoc_file_test.v b/cmd/tools/vdoc/tests/vdoc_file_test.v
index cee7d2bc1c..9ad62cc59b 100644
--- a/cmd/tools/vdoc/tests/vdoc_file_test.v
+++ b/cmd/tools/vdoc/tests/vdoc_file_test.v
@@ -71,7 +71,7 @@ fn print_compare(expected string, found string) {
 	println(found)
 	println('============\n')
 	println('diff:')
-	println(diff.color_compare_strings(diff_cmd, rand.ulid(), found, expected))
+	println(diff.color_compare_strings(diff_cmd, rand.ulid(), expected, found))
 	println('============\n')
 }
 
diff --git a/cmd/tools/vvet/vet_test.v b/cmd/tools/vvet/vet_test.v
index aab8f94a02..db05175a2a 100644
--- a/cmd/tools/vvet/vet_test.v
+++ b/cmd/tools/vvet/vet_test.v
@@ -52,7 +52,7 @@ fn check_path(vexe string, dir string, tests []string) int {
 			println(found)
 			println('============\n')
 			println('diff:')
-			println(diff.color_compare_strings(diff_cmd, rand.ulid(), found, expected))
+			println(diff.color_compare_strings(diff_cmd, rand.ulid(), expected, found))
 			println('============\n')
 			nb_fail++
 		} else {
diff --git a/vlib/v/compiler_errors_test.v b/vlib/v/compiler_errors_test.v
index d088092ba4..5a251e4ff6 100644
--- a/vlib/v/compiler_errors_test.v
+++ b/vlib/v/compiler_errors_test.v
@@ -362,10 +362,10 @@ fn clean_line_endings(s string) string {
 	return res
 }
 
-fn diff_content(s1 string, s2 string) {
+fn diff_content(expected string, found string) {
 	diff_cmd := diff.find_working_diff_command() or { return }
 	println(term.bold(term.yellow('diff: ')))
-	println(diff.color_compare_strings(diff_cmd, rand.ulid(), s1, s2))
+	println(diff.color_compare_strings(diff_cmd, rand.ulid(), expected, found))
 	println('============\n')
 }
 
diff --git a/vlib/v/gen/js/program_test.v b/vlib/v/gen/js/program_test.v
index bf4c2f37a2..68dc0fe6b1 100644
--- a/vlib/v/gen/js/program_test.v
+++ b/vlib/v/gen/js/program_test.v
@@ -84,7 +84,7 @@ fn check_path(dir string, tests []string) !int {
 			println(found)
 			println('============\n')
 			println('diff:')
-			println(diff.color_compare_strings(diff_cmd, rand.ulid(), found, expected))
+			println(diff.color_compare_strings(diff_cmd, rand.ulid(), expected, found))
 			println('============\n')
 			nb_fail++
 		} else {