diff --git a/test/de/inetsoftware/jwebassembly/math/MathOperations.java b/test/de/inetsoftware/jwebassembly/math/MathOperations.java
index 50a0235..7b18ddf 100644
--- a/test/de/inetsoftware/jwebassembly/math/MathOperations.java
+++ b/test/de/inetsoftware/jwebassembly/math/MathOperations.java
@@ -68,6 +68,11 @@ public class MathOperations {
         rule.test( script, "addInt", 1, 3 );
     }
 
+    @Test
+    public void addLong() {
+        rule.test( script, "addLong" );
+    }
+
     @Test
     public void addFloat() {
         rule.test( script, "addFloat", 1F, 3.5F );
@@ -100,6 +105,13 @@ public class MathOperations {
             return a + b;
         }
 
+        @Export
+        static int addLong() {
+            long a = 1L;
+            long b = 3L;
+            return (int)(a + b);
+        }
+
         @Export
         static float addFloat( float a, float b ) {
             return a + b;