diff --git a/src/DebugBar/DataFormatter/DataFormatter.php b/src/DebugBar/DataFormatter/DataFormatter.php
index 7ffb1989..d3043e81 100644
--- a/src/DebugBar/DataFormatter/DataFormatter.php
+++ b/src/DebugBar/DataFormatter/DataFormatter.php
@@ -54,8 +54,10 @@ public function formatDuration($seconds)
     {
         if ($seconds < 0.001) {
             return round($seconds * 1000000) . 'μs';
-        } elseif ($seconds < 1) {
+        } elseif ($seconds < 0.1) {
             return round($seconds * 1000, 2) . 'ms';
+        } elseif ($seconds < 1) {
+            return round($seconds * 1000) . 'ms';
         }
         return round($seconds, 2) . 's';
     }