1 files changed, 4 insertions, 2 deletions
diff --git a/parse.y b/parse.y
index cabced742b..9ce595da4c 100644
--- a/parse.y
+++ b/parse.y
@@ -1882,8 +1882,10 @@ read_escape()
 	    int i;
 
 	    for (i=0; i<2; i++) {
-		buf[i] = nextc();
-		if (buf[i] == -1) goto eof;
+		int cc = nextc();
+
+		if (cc == -1) goto eof;
+		buf[i] = cc;
 		if (!ISXDIGIT(buf[i])) {
 		    pushback(buf[i]);
 		    break;