diff --git a/VectoCore/Utils/VectoMath.cs b/VectoCore/Utils/VectoMath.cs
index 9adb009096a07051dab36304204e217a54a05a87..0538c4555a56c2983bed989c50f5a1842856e762 100644
--- a/VectoCore/Utils/VectoMath.cs
+++ b/VectoCore/Utils/VectoMath.cs
@@ -80,7 +80,7 @@ namespace TUGraz.VectoCore.Utils
 				retVal.Add((-b - Math.Sqrt(D)) / (2 * a));
 			} else {
 				// only one solution possible
-				retVal.Add((-b / (4 * a * c)));
+				retVal.Add((-b / (2 * a)));
 			}
 			return retVal;
 		}