diff --git a/src/jse/org/luaj/vm2/lib/jse/JseStringLib.java b/src/jse/org/luaj/vm2/lib/jse/JseStringLib.java
new file mode 100644
index 00000000..41177787
--- /dev/null
+++ b/src/jse/org/luaj/vm2/lib/jse/JseStringLib.java
@@ -0,0 +1,39 @@
+/*******************************************************************************
+* Copyright (c) 2009 Luaj.org. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+* 
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+* THE SOFTWARE.
+******************************************************************************/
+package org.luaj.vm2.lib.jse;
+
+public class JseStringLib extends org.luaj.vm2.lib.StringLib {
+	
+	/** public constructor */
+	public JseStringLib() {
+	}
+
+	protected String format(String src, double x) {
+		String out;
+		try {
+			out = String.format(src, new Object[] {Double.valueOf(x)});
+		} catch (Throwable e) {
+			out = super.format(src, x);
+		}
+		return out;
+	}
+}