diff --git a/main/src/com/google/refine/expr/functions/math/Round.java b/main/src/com/google/refine/expr/functions/math/Round.java
index 1805fb559..f1f17420e 100644
--- a/main/src/com/google/refine/expr/functions/math/Round.java
+++ b/main/src/com/google/refine/expr/functions/math/Round.java
@@ -46,7 +46,7 @@ public class Round implements Function {
 
     public Object call(Properties bindings, Object[] args) {
         if (args.length == 1 && args[0] != null && args[0] instanceof Number) {
-            return ((Number) args[0]).longValue();
+            return Math.round(((Number) args[0]).doubleValue());
         }
         return new EvalError(ControlFunctionRegistry.getFunctionName(this) + " expects a number");
     }