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 1e71c2729cf111404e40196ee5eb041f962cc698..3ac669ef457ec59b93c6731dca8cab821b7df70e 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
@@ -72,13 +72,13 @@ class QuantityTest {
 
 	@Test
 	void testIrradiance() {
-		Quantity<Intensity> q = Quantities.getQuantity("1000 W/m²").asType(Intensity.class);
+		Quantity<Intensity> q = Quantities.getQuantity((String) "1000 W/m²").asType(Intensity.class);
 		assertEquals("[M]/[T]³", q.getUnit().getDimension().toString(), "Wrong dimension!");
 	}
 
 	@Test
 	void testVolumetricFlows() {
-		Quantity<VolumetricFlowRate> q = Quantities.getQuantity("10800000 l/h").asType(VolumetricFlowRate.class);
+		Quantity<VolumetricFlowRate> q = Quantities.getQuantity((String) "10800000 l/h").asType(VolumetricFlowRate.class);
 		assertEquals("[L]³/[T]", q.getUnit().getDimension().toString(), "Wrong dimension!");
 		assertEquals("3 m³/s", q.toSystemUnit().toString());
 	}