diff --git a/src/TriangleChecker.java b/src/TriangleChecker.java
index 69f0b6d..8279735 100644
--- a/src/TriangleChecker.java
+++ b/src/TriangleChecker.java
@@ -47,7 +47,7 @@ public class TriangleChecker {
 
   // Analyse der Dreiecksart
   public static TriangleType checkTriangle(float a, float b, float c) {
-    if(a<=0 || b<=0 || c<=0 || a+b<c|| a+c<b || b+c<a){
+    if(a<=0 || b<=0 || c<=0 || a+b<=c|| a+c<=b || b+c<=a){
       return TriangleType.NONE;
     }
     if(a==b && a==c){
diff --git a/test/TriangleCheckerTest.java b/test/TriangleCheckerTest.java
index e1bb969..c630ee4 100644
--- a/test/TriangleCheckerTest.java
+++ b/test/TriangleCheckerTest.java
@@ -97,22 +97,6 @@ public class TriangleCheckerTest {
 
     }
 
-    @Test
-    public void testValidIsoscelesTriangle() {
-
-        // Arrange
-        float a = 3;
-        float b = 3;
-        float c = 4;
-
-        // Act
-        TriangleChecker.TriangleType type = TriangleChecker.checkTriangle(a, b, c);
-
-        // Assert
-        assertEquals(TriangleChecker.TriangleType.ISOSCELES, type);
-
-    }
-
     @Test
     public void testValidNoTriangle5() {
 
@@ -129,5 +113,37 @@ public class TriangleCheckerTest {
 
     }
 
+    @Test
+    public void testValidNoTriangle6() {
+
+        // Arrange
+        float a = 3;
+        float b = 5;
+        float c = 8;
+
+        // Act
+        TriangleChecker.TriangleType type = TriangleChecker.checkTriangle(a, b, c);
+
+        // Assert
+        assertEquals(TriangleChecker.TriangleType.NONE, type);
+
+    }
+
+    @Test
+    public void testValidIsoscelesTriangle() {
+
+        // Arrange
+        float a = 3;
+        float b = 3;
+        float c = 4;
+
+        // Act
+        TriangleChecker.TriangleType type = TriangleChecker.checkTriangle(a, b, c);
+
+        // Assert
+        assertEquals(TriangleChecker.TriangleType.ISOSCELES, type);
+
+    }
+
 
 }