diff --git a/src/main/java/com/ctc/wstx/sw/BufferingXmlWriter.java b/src/main/java/com/ctc/wstx/sw/BufferingXmlWriter.java
index 587527b9..91ca4091 100644
--- a/src/main/java/com/ctc/wstx/sw/BufferingXmlWriter.java
+++ b/src/main/java/com/ctc/wstx/sw/BufferingXmlWriter.java
@@ -1364,6 +1364,7 @@ public void writeTypedAttribute(String prefix, String localName, String nsURI,
         mOutputPtr = enc.encodeMore(mOutputBuffer, mOutputPtr, mOutputBufLen);
         if (enc.isCompleted()) { // yup
             validator.validateAttribute(localName, nsURI, prefix, mOutputBuffer, start, mOutputPtr);
+            fastWriteRaw('"');
             return;
         }
 
diff --git a/src/test/java/wstxtest/msv/TestW3CSchemaTypes.java b/src/test/java/wstxtest/msv/TestW3CSchemaTypes.java
index c150f9de..19b78ee0 100644
--- a/src/test/java/wstxtest/msv/TestW3CSchemaTypes.java
+++ b/src/test/java/wstxtest/msv/TestW3CSchemaTypes.java
@@ -30,6 +30,16 @@ public class TestW3CSchemaTypes
         +"\n</xsd:schema>"
         ;
 
+    final static String SCHEMA_ATTRIBUTE =
+        "<xsd:schema xmlns:xsd='http://www.w3.org/2001/XMLSchema'>\n"
+        +"<xsd:element name='price'>\n"
+        +"<xsd:complexType>\n"
+        +"<xsd:attribute name='amount' type='xsd:int' use='required'/>\n"
+        +"</xsd:complexType>\n"
+        +"</xsd:element>\n"
+        +"</xsd:schema>"
+        ;
+
     // // // First 'int' datatype
 
     public void testSimpleValidInt() throws Exception
@@ -66,6 +76,25 @@ public void testSimpleInvalidFloat() throws Exception
 
     // // // Writing
 
+    public void testValdiationWhenWritingAttribute() throws Exception
+    {
+        XMLValidationSchema schema = parseW3CSchema(SCHEMA_ATTRIBUTE);
+
+        XMLOutputFactory2 f = getOutputFactory();
+        final StringWriter stringWriter = new StringWriter();
+        XMLStreamWriter2 sw = (XMLStreamWriter2)f.createXMLStreamWriter(stringWriter);
+        sw.validateAgainst(schema);
+
+        sw.writeStartElement("price");
+        sw.writeIntAttribute(null, null, "amount", 129);
+        sw.writeEndElement();
+        sw.flush();
+
+        XMLStreamReader2 sr = getReader(stringWriter.toString());
+        sr.validateAgainst(schema);
+        streamThrough(sr);
+    }
+
     public void testValdiationWhenWritingCharactersFromArray() throws Exception
     {
         XMLValidationSchema schema = parseW3CSchema(SCHEMA_INT);