diff --git a/administrator/templates/isis/css/template-rtl.css b/administrator/templates/isis/css/template-rtl.css
index 2c082910b1354..a664a1f057349 100644
--- a/administrator/templates/isis/css/template-rtl.css
+++ b/administrator/templates/isis/css/template-rtl.css
@@ -4709,7 +4709,6 @@ a.badge:focus {
 	.input-prepend input[class*="span"],
 	.input-append input[class*="span"] {
 		display: inline-block;
-		width: auto;
 	}
 	.controls-row [class*="span"] + [class*="span"] {
 		margin-left: 0;
diff --git a/administrator/templates/isis/css/template.css b/administrator/templates/isis/css/template.css
index 059887b1aedae..5cce4e7bbbfac 100644
--- a/administrator/templates/isis/css/template.css
+++ b/administrator/templates/isis/css/template.css
@@ -4709,7 +4709,6 @@ a.badge:focus {
 	.input-prepend input[class*="span"],
 	.input-append input[class*="span"] {
 		display: inline-block;
-		width: auto;
 	}
 	.controls-row [class*="span"] + [class*="span"] {
 		margin-left: 0;
diff --git a/media/jui/less/responsive-767px-max.less b/media/jui/less/responsive-767px-max.less
index c4a82f75da718..d011170d7c44c 100644
--- a/media/jui/less/responsive-767px-max.less
+++ b/media/jui/less/responsive-767px-max.less
@@ -101,7 +101,6 @@
   .input-prepend input[class*="span"],
   .input-append input[class*="span"] {
     display: inline-block; // redeclare so they don't wrap to new lines
-    width: auto;
   }
   .controls-row [class*="span"] + [class*="span"] {
     margin-left: 0;
diff --git a/templates/protostar/css/template.css b/templates/protostar/css/template.css
index 7b83175a67212..f3667089abdcd 100644
--- a/templates/protostar/css/template.css
+++ b/templates/protostar/css/template.css
@@ -4870,7 +4870,6 @@ a.badge:focus {
 	.input-prepend input[class*="span"],
 	.input-append input[class*="span"] {
 		display: inline-block;
-		width: auto;
 	}
 	.controls-row [class*="span"] + [class*="span"] {
 		margin-left: 0;