diff --git a/addons/vest/plugin.cfg b/addons/vest/plugin.cfg
index f534949..37e7251 100644
--- a/addons/vest/plugin.cfg
+++ b/addons/vest/plugin.cfg
@@ -3,5 +3,5 @@
 name="vest"
 description="A unit testing library for Godot"
 author="Tamás Gálffy and contributors"
-version="1.10.3"
+version="1.10.4"
 script="plugin.gd"
diff --git a/addons/vest/ui/vest-ui.gd b/addons/vest/ui/vest-ui.gd
index 60263a7..ff6e57f 100644
--- a/addons/vest/ui/vest-ui.gd
+++ b/addons/vest/ui/vest-ui.gd
@@ -204,7 +204,7 @@ static func get_status_icon(what: Variant) -> Texture2D:
 
 static func format_duration(duration: float) -> String:
 	if duration > 60.:
-		return "%.2fmin" % duration
+		return "%.2fmin" % [duration / 60.]
 	elif duration > 1.:
 		return "%.2fs" % duration
 	elif duration > 0.001:
diff --git a/tests/format-duration.test.gd b/tests/format-duration.test.gd
new file mode 100644
index 0000000..910847f
--- /dev/null
+++ b/tests/format-duration.test.gd
@@ -0,0 +1,16 @@
+extends VestTest
+
+func get_suite_name():
+	return "VestUI.format_duration()"
+
+func suite():
+	var cases := [
+		["minutes", 150., "2.50min"],
+		["seconds", 17.85, "17.85s"],
+		["milliseconds", 0.758, "758.00ms"],
+		["microseconds", 0.000_004_520, "4.52µs"],
+		["rounding", 1.1705, "1.17s"]
+	]
+
+	for case in cases:
+		test(case[0], func(): expect_equal(VestUI.format_duration(case[1]), case[2]))
diff --git a/tests/format-duration.test.gd.uid b/tests/format-duration.test.gd.uid
new file mode 100644
index 0000000..a2cc3ab
--- /dev/null
+++ b/tests/format-duration.test.gd.uid
@@ -0,0 +1 @@
+uid://d2mq852selen1