diff --git a/share/themes/Kali-Dark/gtk-3.0/gtk.css b/share/themes/Kali-Dark/gtk-3.0/gtk.css
index d3ffb0a8..5fa836ef 100644
--- a/share/themes/Kali-Dark/gtk-3.0/gtk.css
+++ b/share/themes/Kali-Dark/gtk-3.0/gtk.css
@@ -5577,6 +5577,16 @@ infobar.error:backdrop > revealer > box, infobar.error > revealer > box, infobar
   .app-notification.frame:backdrop {
     box-shadow: none; }
 
+/************
+ * Calendar *
+ ***********/
+calendar {
+  border-radius: 6px;
+  border: 0;
+  padding: 1px; }
+  calendar:selected {
+    border-radius: 999px; }
+
 /***********
  * Dialogs *
  ***********/
diff --git a/share/themes/Kali-Light/gtk-3.0/gtk-dark.css b/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
index d3ffb0a8..5fa836ef 100644
--- a/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
+++ b/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
@@ -5577,6 +5577,16 @@ infobar.error:backdrop > revealer > box, infobar.error > revealer > box, infobar
   .app-notification.frame:backdrop {
     box-shadow: none; }
 
+/************
+ * Calendar *
+ ***********/
+calendar {
+  border-radius: 6px;
+  border: 0;
+  padding: 1px; }
+  calendar:selected {
+    border-radius: 999px; }
+
 /***********
  * Dialogs *
  ***********/
diff --git a/share/themes/Kali-Light/gtk-3.0/gtk.css b/share/themes/Kali-Light/gtk-3.0/gtk.css
index 06c5b012..cd51e132 100644
--- a/share/themes/Kali-Light/gtk-3.0/gtk.css
+++ b/share/themes/Kali-Light/gtk-3.0/gtk.css
@@ -5598,6 +5598,16 @@ infobar.error:backdrop > revealer > box, infobar.error > revealer > box, infobar
   .app-notification.frame:backdrop {
     box-shadow: none; }
 
+/************
+ * Calendar *
+ ***********/
+calendar {
+  border-radius: 6px;
+  border: 0;
+  padding: 1px; }
+  calendar:selected {
+    border-radius: 999px; }
+
 /***********
  * Dialogs *
  ***********/
diff --git a/src/themes/Kali/sass/gtk-sass/_common-tweaks.scss b/src/themes/Kali/sass/gtk-sass/_common-tweaks.scss
index 3d4bb963..857167a2 100644
--- a/src/themes/Kali/sass/gtk-sass/_common-tweaks.scss
+++ b/src/themes/Kali/sass/gtk-sass/_common-tweaks.scss
@@ -375,6 +375,17 @@ infobar {
   &:backdrop { box-shadow: none; }
 }
 
+/************
+ * Calendar *
+ ***********/
+calendar {
+  border-radius: 6px;
+  border:0;
+  padding: 1px;
+
+  &:selected { border-radius: 999px; }
+}
+
 /***********
  * Dialogs *
  ***********/