diff --git a/Examples/test-suite/anonymous_bitfield.i b/Examples/test-suite/anonymous_bitfield.i
index eca2c6b84..309f82caf 100644
--- a/Examples/test-suite/anonymous_bitfield.i
+++ b/Examples/test-suite/anonymous_bitfield.i
@@ -9,6 +9,8 @@ struct Foo {
    unsigned int f : 1;
    unsigned int : 5;
    int z : 15;
+   unsigned int : 8+6; 
+   unsigned seq : (sizeof(unsigned)*8 - 6); 
 };
 
 %}
diff --git a/Source/CParse/parser.y b/Source/CParse/parser.y
index 5857e23cb..320a097a1 100644
--- a/Source/CParse/parser.y
+++ b/Source/CParse/parser.y
@@ -3448,7 +3448,7 @@ cpp_vend       : cpp_const SEMI {
                ;
 
 
-anonymous_bitfield : storage_class type COLON NUM_INT SEMI { };
+anonymous_bitfield :  storage_class type COLON expr SEMI { };
 
 /* ====================================================================== 
  *                       PRIMITIVES
@@ -3645,7 +3645,7 @@ def_args       : EQUAL definetype {
 		 $$.bitfield = 0;
 		 $$.throws = 0;
 	       }
-               | COLON NUM_INT { 
+               | COLON expr { 
 		 $$.val = 0;
 		 $$.rawval = 0;
 		 $$.type = 0;