diff --git a/src/styles/_bootstrap_variables.scss b/src/styles/_bootstrap_variables.scss
index 41a304af39..4c631a294a 100644
--- a/src/styles/_bootstrap_variables.scss
+++ b/src/styles/_bootstrap_variables.scss
@@ -12,8 +12,8 @@ $image-path: "../assets/images" !default;
 
 /** Bootstrap Variables **/
 /* Colors */
-$gray-700: #495057; !default  // Bootstrap $gray-700
-$gray-100: #f8f9fa; !default  //           $gray-100
+$gray-700: #495057 !default;  // Bootstrap $gray-700
+$gray-100: #f8f9fa !default;  //           $gray-100
 
 /* Reassign color vars to semantic color scheme */
 $blue:   #2B4E72 !default;
diff --git a/src/themes/custom/styles/_theme_sass_variable_overrides.scss b/src/themes/custom/styles/_theme_sass_variable_overrides.scss
index 0711268582..f1387aa619 100644
--- a/src/themes/custom/styles/_theme_sass_variable_overrides.scss
+++ b/src/themes/custom/styles/_theme_sass_variable_overrides.scss
@@ -5,8 +5,8 @@
 
 // $font-family-sans-serif:      -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji" !default;
 //
-// $gray-700: #495057; !default  // Bootstrap $gray-700
-// $gray-100: #f8f9fa; !default  //           $gray-100
+// $gray-700: #495057 !default;  // Bootstrap $gray-700
+// $gray-100: #f8f9fa !default;  //           $gray-100
 //
 // $blue:   #2B4E72 !default;
 // $green:  #94BA65 !default;
diff --git a/src/themes/dspace/styles/_theme_sass_variable_overrides.scss b/src/themes/dspace/styles/_theme_sass_variable_overrides.scss
index b6fddce24a..9257bc46dd 100644
--- a/src/themes/dspace/styles/_theme_sass_variable_overrides.scss
+++ b/src/themes/dspace/styles/_theme_sass_variable_overrides.scss
@@ -17,9 +17,9 @@ $yellow: #ec9433 !default;
 $red: #CF4444 !default;
 $dark: #43515f !default;
 
-$gray-800: #343a40; !default
-$gray-400: #ced4da; !default
-$gray-100: #f8f9fa; !default
+$gray-800: #343a40 !default;
+$gray-400: #ced4da !default;
+$gray-100: #f8f9fa !default;
 
 $body-color: $gray-800 !default;                    // Bootstrap $gray-800