diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 3eea40123c..09130931fb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+Tue Mar 15 11:40:43 1994  Kung Hsu  (kung@mexican.cygnus.com)
+
+	* c-exp.y(yylex): fix potential memory overflow.
+
 Tue Mar 15 10:33:28 1994  Jim Kingdon  (kingdon@lioth.cygnus.com)
 
 	* environ.c (set_in_environ): Eliminate special handling of PATH and
diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 62ecbb0f6a..d559c115d0 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -1573,7 +1573,7 @@ yylex ()
 		      struct symbol *cur_sym;
 		      /* As big as the whole rest of the expression, which is
 			 at least big enough.  */
-		      char *tmp = alloca (strlen (namestart));
+		      char *tmp = alloca (strlen (namestart)+1);
 
 		      memcpy (tmp, namestart, p - namestart);
 		      tmp[p - namestart] = '\0';