diff --git a/opentech/static_src/src/sass/public/components/_form.scss b/opentech/static_src/src/sass/public/components/_form.scss
index ddee807bb320d7f610114a81874f99d1262d8ade..89feb68733d5ec29d8c66791d52a7b2418e631ef 100644
--- a/opentech/static_src/src/sass/public/components/_form.scss
+++ b/opentech/static_src/src/sass/public/components/_form.scss
@@ -1,6 +1,6 @@
 .form {
     &--header-search-desktop {
-        width: 300px;
+        max-width: 300px;
         border-bottom: 1px solid $color--white;
     }