diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 627e5ee8a2b..d1a76c712e5 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -5649,7 +5649,7 @@ class Form
 		}
 		elseif ($typehour=='text' || $typehour=='textselect')
 		{
-			$retstring.='<input placeholder="'.$langs->trans('HourShort').'" type="number" min="0" size="1" name="'.$prefix.'hour"'.($disabled?' disabled':'').' class="flat maxwidth50 inputhour" value="'.(($hourSelected != '')?((int) $hourSelected):'').'">';
+			$retstring.='<input placeholder="'.$langs->trans('HourShort').'" type="number" min="0" name="'.$prefix.'hour"'.($disabled?' disabled':'').' class="flat maxwidth50 inputhour" value="'.(($hourSelected != '')?((int) $hourSelected):'').'">';
 		}
 		else return 'BadValueForParameterTypeHour';
 
@@ -5673,7 +5673,7 @@ class Form
 		}
 		elseif ($typehour=='text' )
 		{
-			$retstring.='<input placeholder="'.$langs->trans('MinuteShort').'" type="number" min="0" size="1" name="'.$prefix.'min"'.($disabled?' disabled':'').' class="flat maxwidth50 inputminute" value="'.(($minSelected != '')?((int) $minSelected):'').'">';
+			$retstring.='<input placeholder="'.$langs->trans('MinuteShort').'" type="number" min="0" name="'.$prefix.'min"'.($disabled?' disabled':'').' class="flat maxwidth50 inputminute" value="'.(($minSelected != '')?((int) $minSelected):'').'">';
 		}
 
 		if ($typehour!='text') $retstring.=' '.$langs->trans('MinuteShort');