diff --git a/pack-objects.c b/pack-objects.c
index 084c200..7d62477 100644
--- a/pack-objects.c
+++ b/pack-objects.c
@@ -915,9 +915,10 @@
 				break;
 			if (!ferror(stdin))
 				die("fgets returned NULL, not EOF, not error!");
-			if (errno == EINTR)
-				continue;
-			die("fgets: %s", strerror(errno));
+			if (errno != EINTR)
+				die("fgets: %s", strerror(errno));
+			clearerr(stdin);
+			continue;
 		}
 
 		if (progress_update) {