diff --git a/src/jse/org/luaj/vm2/lib/jse/JseIoLib.java b/src/jse/org/luaj/vm2/lib/jse/JseIoLib.java
index 83a7c13c..d00d5db1 100644
--- a/src/jse/org/luaj/vm2/lib/jse/JseIoLib.java
+++ b/src/jse/org/luaj/vm2/lib/jse/JseIoLib.java
@@ -321,7 +321,7 @@ public class JseIoLib extends IoLib {
 		}
 
 		public int remaining() throws IOException {
-			return 0;
+			return -1;
 		}
 
 		public int peek() throws IOException, EOFException {