diff --git a/src/material/checkbox/checkbox.html b/src/material/checkbox/checkbox.html
index 1e46a03ef823..22b400daac3c 100644
--- a/src/material/checkbox/checkbox.html
+++ b/src/material/checkbox/checkbox.html
@@ -30,7 +30,6 @@
            focusable="false"
            class="mat-checkbox-checkmark"
            viewBox="0 0 24 24"
-           xml:space="preserve"
            aria-hidden="true">
         <path class="mat-checkbox-checkmark-path"
               fill="none"