diff --git a/rules/base.o_c.part b/rules/base.o_c.part
index 352f8b3..8d38578 100644
--- a/rules/base.o_c.part
+++ b/rules/base.o_c.part
@@ -3,4 +3,4 @@
   grp_led:scroll	=	+ledscroll(group_lock)
   japan:kana_lock	=	+japan(kana_lock)
   caps:shiftlock	=	+ledcaps(shift_lock)
-
+  shift:both_capslock = +caps(caps_lock)
diff --git a/symbols/shift b/symbols/shift
index cc97b5c..78951c1 100644
--- a/symbols/shift
+++ b/symbols/shift
@@ -23,8 +23,7 @@ partial modifier_keys
 xkb_symbols "lshift_both_capslock" {
   key <LFSH> {
     type[Group1]="TWO_LEVEL",
-    symbols[Group1] = [ Shift_L,                  Caps_Lock                ],
-    actions[Group1] = [ SetMods(modifiers=Shift), LockMods(modifiers=Lock) ]
+    symbols[Group1] = [ Shift_L,                       Caps_Lock                ]
   };
 };
 // When pressed together with another Shift key, set or unset Lock.
@@ -32,8 +31,7 @@ partial modifier_keys
 xkb_symbols "rshift_both_capslock" {
   key <RTSH> {
     type[Group1]="TWO_LEVEL",
-    symbols[Group1] = [ Shift_R,                  Caps_Lock                ],
-    actions[Group1] = [ SetMods(modifiers=Shift), LockMods(modifiers=Lock) ]
+    symbols[Group1] = [ Shift_R,                       Caps_Lock                ]
   };
 };
 partial modifier_keys