diff --git a/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java b/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java
index 3d8f3f23270bf33037544faf3b6208ea0052a121..106affe3539bffe2f0f68d8e813f18f8da13cae6 100644
--- a/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java
+++ b/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java
@@ -68,9 +68,9 @@ class QuantityTest {
 
 	@Test
 	void testCO2eq() {
-		Quantity<Mass> q = Quantities.getQuantity("5200.5 kg·CO₂eq").asType(Mass.class);
+		Quantity<Mass> q = Quantities.getQuantity((String) "5200.5 kg·CO₂eq").asType(Mass.class);
 		assertEquals("[M]", q.getUnit().getDimension().toString(), "Wrong dimension!");
-		assertTrue(q.isEquivalentTo(Quantities.getQuantity("5.2005 t·CO₂eq").asType(Mass.class)),
+		assertTrue(q.isEquivalentTo(Quantities.getQuantity((String) "5.2005 t·CO₂eq").asType(Mass.class)),
 				"Wrong conversion from kg of COâ‚‚eq to ton of COâ‚‚eq!");
 	}