diff --git a/Parser.pas b/Parser.pas
index acad9b4..83c31f9 100644
--- a/Parser.pas
+++ b/Parser.pas
@@ -3091,7 +3091,11 @@ while token.kind in allowedTokens do begin
                   Expression(arrayExpression,[commach,rbracech]);
                   enumVal := long(expressionValue).lsw;
                   if enumVal <> expressionValue then
-                     Error(6);
+                     Error(6)
+                  else if enumVal < 0 then
+                     if expressionType^.kind = scalarType then
+                        if expressionType^.baseType in [cgULong,cgUQuad] then
+                           Error(6);
                   end; {if}
                tPtr^.eval := enumVal;   {set the enumeration constant value}
                enumVal := enumVal+1;    {inc the default enumeration value}
diff --git a/cc.notes b/cc.notes
index e2b8159..11d625c 100644
--- a/cc.notes
+++ b/cc.notes
@@ -1194,6 +1194,8 @@ int foo(int[42]);
 
 156. The second subexpression of a ? : expression may use the comma operator, even in a context where commas would otherwise separate items (such as arguments to a function).  For example, abs(1 ? 2,-3 : 4) is a valid call that passes one argument.  Code like this was causing spurious errors, but now it is accepted.
 
+157. An error was not reported if code tried to declare an enumeration constant with a value in the range 0xFFFF8000 to 0xFFFFFFFF.  (Enumeration constants are limited to values representable as an int.)
+
 -- Bugs from C 2.1.0 that have been fixed -----------------------------------
 
 1.  In some situations, fread() reread the first 1K or so of the file.