diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5962fbd61549..5b463a7bb429 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2000-12-11  Neil Booth  <neilb@earthling.net>
+
+	* tradcpp.h: For tradcpp, NUL is not whitespace.
+
 2000-12-11  Neil Booth  <neilb@earthling.net>
 
 	* fix-header.c (read_scan_file): Macro expansion is not a file buffer.
diff --git a/gcc/tradcpp.h b/gcc/tradcpp.h
index f4c9ff34e3de..d5ec19e57988 100644
--- a/gcc/tradcpp.h
+++ b/gcc/tradcpp.h
@@ -39,6 +39,6 @@ extern int test_assertion PARAMS ((unsigned char **));
 #define is_idchar(x)	ISIDNUM(x)
 #define is_idstart(x)	ISIDST(x)
 #define is_space(x)	ISSPACE(x)
-#define is_nvspace(x)	IS_NVSPACE(x)
+#define is_nvspace(x)	(IS_NVSPACE(x) && x != '\0')
 
 #endif /* ! _TRADCPP_H_ */