diff --git a/res/css/structures/_SpaceRoomView.scss b/res/css/structures/_SpaceRoomView.scss
index 3d3b5d1bb8..24c115c864 100644
--- a/res/css/structures/_SpaceRoomView.scss
+++ b/res/css/structures/_SpaceRoomView.scss
@@ -22,7 +22,7 @@ $SpaceRoomViewInnerWidth: 428px;
     width: 432px;
     box-sizing: border-box;
     border-radius: 8px;
-    border: 1px solid $space-button-outline-color;
+    border: 1px solid $input-border-color;
     font-size: $font-15px;
     margin: 20px 0;
 
@@ -122,7 +122,6 @@ $SpaceRoomViewInnerWidth: 428px;
         max-width: 480px;
         box-sizing: border-box;
         box-shadow: 2px 15px 30px $dialog-shadow-color;
-        border: 1px solid $input-border-color;
         border-radius: 8px;
 
         .mx_SpaceRoomView_preview_inviter {
@@ -292,7 +291,7 @@ $SpaceRoomViewInnerWidth: 428px;
                 box-sizing: border-box;
                 padding: 72px 16px 0;
                 border-radius: 12px;
-                border: 1px solid $space-button-outline-color;
+                border: 1px solid $input-border-color;
                 margin-right: 28px;
                 margin-bottom: 28px;
                 font-size: $font-14px;
diff --git a/res/css/views/rooms/_RoomList.scss b/res/css/views/rooms/_RoomList.scss
index 22440fa6db..8eda25d0c9 100644
--- a/res/css/views/rooms/_RoomList.scss
+++ b/res/css/views/rooms/_RoomList.scss
@@ -37,7 +37,7 @@ limitations under the License.
 .mx_RoomList_explorePrompt {
     margin: 4px 12px 4px;
     padding-top: 12px;
-    border-top: 1px solid $tertiary-fg-color;
+    border-top: 1px solid $input-border-color;
     font-size: $font-14px;
 
     div:first-child {
diff --git a/res/themes/dark/css/_dark.scss b/res/themes/dark/css/_dark.scss
index 7a751ad9c1..cf1fd17e58 100644
--- a/res/themes/dark/css/_dark.scss
+++ b/res/themes/dark/css/_dark.scss
@@ -123,7 +123,6 @@ $roomsublist-divider-color: $primary-fg-color;
 $roomsublist-skeleton-ui-bg: linear-gradient(180deg, #3e444c 0%, #3e444c00 100%);
 
 $groupFilterPanel-divider-color: $roomlist-header-color;
-$space-button-outline-color: rgba(141, 151, 165, 0.2);
 
 $roomtile-preview-color: $secondary-fg-color;
 $roomtile-default-badge-bg-color: #61708b;
diff --git a/res/themes/legacy-dark/css/_legacy-dark.scss b/res/themes/legacy-dark/css/_legacy-dark.scss
index 764b8f302a..ff58314bdd 100644
--- a/res/themes/legacy-dark/css/_legacy-dark.scss
+++ b/res/themes/legacy-dark/css/_legacy-dark.scss
@@ -120,7 +120,6 @@ $roomsublist-divider-color: $primary-fg-color;
 $roomsublist-skeleton-ui-bg: linear-gradient(180deg, #3e444c 0%, #3e444c00 100%);
 
 $groupFilterPanel-divider-color: $roomlist-header-color;
-$space-button-outline-color: rgba(141, 151, 165, 0.2);
 
 $roomtile-preview-color: #9e9e9e;
 $roomtile-default-badge-bg-color: #61708b;
diff --git a/res/themes/legacy-light/css/_legacy-light.scss b/res/themes/legacy-light/css/_legacy-light.scss
index 9ad154dd93..0b51b9c0ca 100644
--- a/res/themes/legacy-light/css/_legacy-light.scss
+++ b/res/themes/legacy-light/css/_legacy-light.scss
@@ -187,7 +187,6 @@ $roomsublist-divider-color: $primary-fg-color;
 $roomsublist-skeleton-ui-bg: linear-gradient(180deg, #ffffff 0%, #ffffff00 100%);
 
 $groupFilterPanel-divider-color: $roomlist-header-color;
-$space-button-outline-color: #E3E8F0;
 
 $roomtile-preview-color: #9e9e9e;
 $roomtile-default-badge-bg-color: #61708b;
diff --git a/res/themes/light/css/_light.scss b/res/themes/light/css/_light.scss
index 25fbd0201b..7fde36232e 100644
--- a/res/themes/light/css/_light.scss
+++ b/res/themes/light/css/_light.scss
@@ -178,7 +178,6 @@ $roomsublist-divider-color: $primary-fg-color;
 $roomsublist-skeleton-ui-bg: linear-gradient(180deg, #ffffff 0%, #ffffff00 100%);
 
 $groupFilterPanel-divider-color: $roomlist-header-color;
-$space-button-outline-color: #E3E8F0;
 
 $roomtile-preview-color: $secondary-fg-color;
 $roomtile-default-badge-bg-color: #61708b;