diff --git a/poi/src/test/java/org/apache/poi/ss/formula/functions/TestRoundFuncs.java b/poi/src/test/java/org/apache/poi/ss/formula/functions/TestRoundFuncs.java
index e32a5a333b..a0c4b7d7ca 100644
--- a/poi/src/test/java/org/apache/poi/ss/formula/functions/TestRoundFuncs.java
+++ b/poi/src/test/java/org/apache/poi/ss/formula/functions/TestRoundFuncs.java
@@ -53,6 +53,14 @@ final class TestRoundFuncs {
         assertEquals(ErrorEval.VALUE_INVALID, result);
     }
 
+    @Test
+    void testGithub321() {
+        ValueEval strArg = new NumberEval(2.05);
+        ValueEval[] args = { strArg, new NumberEval(1), };
+        NumberEval result = (NumberEval)NumericFunction.ROUND.evaluate(args, -1, (short)-1);
+        assertEquals(2.1, result.getNumberValue());
+    }
+
     @Test
     void testRoundUpWithStringArg() {
         ValueEval strArg = new StringEval("abc");