diff --git a/src/app/@theme/layouts/one-column/one-column.layout.scss b/src/app/@theme/layouts/one-column/one-column.layout.scss
index 7684e65e..1c4aa9d7 100644
--- a/src/app/@theme/layouts/one-column/one-column.layout.scss
+++ b/src/app/@theme/layouts/one-column/one-column.layout.scss
@@ -9,7 +9,7 @@
     /deep/ .main-container {
       height:
         calc(#{nb-theme(sidebar-height)} - #{nb-theme(header-height)} - #{nb-theme(sidebar-header-gap)}) !important;
-      border-top-right-radius: 0.75rem;
+      border-top-right-radius: nb-theme(radius);
     }
 
     /deep/ nb-sidebar-header {
diff --git a/src/app/@theme/layouts/sample/sample.layout.scss b/src/app/@theme/layouts/sample/sample.layout.scss
index 36c10a1d..6f4b2826 100644
--- a/src/app/@theme/layouts/sample/sample.layout.scss
+++ b/src/app/@theme/layouts/sample/sample.layout.scss
@@ -50,7 +50,7 @@
     /deep/ .main-container {
       height:
         calc(#{nb-theme(sidebar-height)} - #{nb-theme(header-height)} - #{nb-theme(sidebar-header-gap)}) !important;
-      border-top-right-radius: 0.75rem;
+      border-top-right-radius: nb-theme(radius);
     }
 
     /deep/ nb-sidebar-header {
diff --git a/src/app/@theme/layouts/three-columns/three-columns.layout.scss b/src/app/@theme/layouts/three-columns/three-columns.layout.scss
index 98634a7e..b2241316 100644
--- a/src/app/@theme/layouts/three-columns/three-columns.layout.scss
+++ b/src/app/@theme/layouts/three-columns/three-columns.layout.scss
@@ -13,7 +13,7 @@
     /deep/ .main-container {
       height:
         calc(#{nb-theme(sidebar-height)} - #{nb-theme(header-height)} - #{nb-theme(sidebar-header-gap)}) !important;
-      border-top-right-radius: 0.75rem;
+      border-top-right-radius: nb-theme(radius);
     }
 
     /deep/ nb-sidebar-header {
diff --git a/src/app/@theme/layouts/two-columns/two-columns.layout.scss b/src/app/@theme/layouts/two-columns/two-columns.layout.scss
index 98634a7e..b2241316 100644
--- a/src/app/@theme/layouts/two-columns/two-columns.layout.scss
+++ b/src/app/@theme/layouts/two-columns/two-columns.layout.scss
@@ -13,7 +13,7 @@
     /deep/ .main-container {
       height:
         calc(#{nb-theme(sidebar-height)} - #{nb-theme(header-height)} - #{nb-theme(sidebar-header-gap)}) !important;
-      border-top-right-radius: 0.75rem;
+      border-top-right-radius: nb-theme(radius);
     }
 
     /deep/ nb-sidebar-header {