diff --git a/less/button-groups-rtl.less b/less/button-groups-rtl.less
index c4e2fa1..117b1ae 100644
--- a/less/button-groups-rtl.less
+++ b/less/button-groups-rtl.less
@@ -68,17 +68,17 @@
 .btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
   border-radius: 0;
 }
-.btn-group > .btn-group:first-child {
+.btn-group > .btn-group:first-child:not(:last-child) {
   > .btn:last-child,
   > .dropdown-toggle {
     border-top-right-radius: @border-radius-base;
     border-bottom-right-radius: @border-radius-base;
-    .border-left-radius(0);
+    .border-left-radius(0); 
   }
 }
-.btn-group > .btn-group:last-child > .btn:first-child {
-    border-top-left-radius: @border-radius-base;
-    border-bottom-left-radius: @border-radius-base;
+.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
+  border-top-left-radius: @border-radius-base;
+  border-bottom-left-radius: @border-radius-base;
   .border-right-radius(0);
 }