diff --git a/refs.c b/refs.c
index 5205745..2b69e1e 100644
--- a/refs.c
+++ b/refs.c
@@ -284,7 +284,7 @@
 		fd = open(path, O_RDONLY);
 		if (fd < 0)
 			return NULL;
-		len = read(fd, buffer, sizeof(buffer)-1);
+		len = read_in_full(fd, buffer, sizeof(buffer)-1);
 		close(fd);
 
 		/*