diff --git a/libemile/emile_get_uncompressed_size.c b/libemile/emile_get_uncompressed_size.c
index e49277e..46fc96f 100644
--- a/libemile/emile_get_uncompressed_size.c
+++ b/libemile/emile_get_uncompressed_size.c
@@ -46,9 +46,12 @@ int emile_get_uncompressed_size(char *file)
 	close(tube[1]);
 
 	ret = read(tube[0], buffer, 1024);
-	if (ret <= 0)
+	if (ret == -1)
 		return -1;
 
+	if (ret == 0)
+		return 0;
+
 	/* skip first line */
 
 	i = 0;