1 files changed, 3 insertions, 1 deletions
diff --git a/parse.y b/parse.y
index 0dde920b2b..3377adb9a6 100644
--- a/parse.y
+++ b/parse.y
@@ -3903,7 +3903,8 @@ yylex()
 			    nondigit = c;
 			    continue;
 			}
-			if (c < '0' || c > '7') break;
+			if (c < '0' || c > '9') break;
+			if (c > '7') goto invalid_octal;
 			nondigit = 0;
 			tokadd(c);
 		    } while ((c = nextc()) != -1);
@@ -3920,6 +3921,7 @@ yylex()
 		    }
 		}
 		if (c > '7' && c <= '9') {
+		  invalid_octal:
 		    yyerror("Illegal octal digit");
 		}
 		else if (c == '.' || c == 'e' || c == 'E') {