diff --git a/bigdata-core/bigdata-rdf/src/java/com/bigdata/rdf/internal/InlineUnsignedIntegerURIHandler.java b/bigdata-core/bigdata-rdf/src/java/com/bigdata/rdf/internal/InlineUnsignedIntegerURIHandler.java
index 8054df0a55..a06c92595f 100644
--- a/bigdata-core/bigdata-rdf/src/java/com/bigdata/rdf/internal/InlineUnsignedIntegerURIHandler.java
+++ b/bigdata-core/bigdata-rdf/src/java/com/bigdata/rdf/internal/InlineUnsignedIntegerURIHandler.java
@@ -90,6 +90,9 @@ public static AbstractLiteralIV createInlineIV(final BigInteger value) {
      */
     @SuppressWarnings("rawtypes")
 	public static AbstractLiteralIV createInlineIV(final long value) {
+    	if (value < 0L) {
+			return new XSDUnsignedLongIV(value + Long.MIN_VALUE);
+		}
 		if (value < 256L) {
 			return new XSDUnsignedByteIV((byte) (value + Byte.MIN_VALUE));
 		}
diff --git a/bigdata-rdf-test/src/test/java/com/bigdata/rdf/store/TestInlineURIs.java b/bigdata-rdf-test/src/test/java/com/bigdata/rdf/store/TestInlineURIs.java
index 20d64441ec..07bba47d1a 100644
--- a/bigdata-rdf-test/src/test/java/com/bigdata/rdf/store/TestInlineURIs.java
+++ b/bigdata-rdf-test/src/test/java/com/bigdata/rdf/store/TestInlineURIs.java
@@ -1,5 +1,5 @@
 /**
-Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.
+Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.
 
 Contact:
      SYSTAP, LLC DBA Blazegraph
@@ -246,6 +246,7 @@ public void testUnsignedInteger() throws Exception {
                 UNSIGNED_INT_NAMESPACE + Short.MAX_VALUE, true,//
                 UNSIGNED_INT_NAMESPACE + Integer.MAX_VALUE, true,//
                 UNSIGNED_INT_NAMESPACE + Long.MAX_VALUE, true,//
+                UNSIGNED_INT_NAMESPACE + "12148449524915690527", true,//
                 UNSIGNED_INT_NAMESPACE + "19223372036854775807", true,//
                 UNSIGNED_INT_NAMESPACE + "foo", false);
     }