diff --git a/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsConventional.cs b/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsConventional.cs
index c37e215d09e90cd47f7b597a3c570de25c88d1a4..b964fb5da2799de934b9001b2da63e34dc73c093 100644
--- a/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsConventional.cs
+++ b/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsConventional.cs
@@ -1400,7 +1400,7 @@ namespace TUGraz.VectoCore.Tests.Integration.ADAS
 		private void TestPCC(string testname,
 			params (double start, double end, PCCStates pcc, DrivingAction action)[] data)
 		{
-			var jobName = testname.Split('_').Slice(0, -2).JoinString("_");
+			var jobName = testname.Split('_').Slice(0, -2).Join("_");
 			var cycleName = testname.Split('_').Reverse().Skip(1).First();
 			DoTestPCC(jobName, cycleName, data);
 		}
diff --git a/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsHEV.cs b/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsHEV.cs
index 3ba1c7fd3e3391b1bd41f3253bd75b394e2049d3..f6d357b10b1195932091e79b6f2104dde8707453 100644
--- a/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsHEV.cs
+++ b/VectoCore/VectoCoreTest/Integration/ADAS/ADASTestsHEV.cs
@@ -1839,7 +1839,7 @@ namespace TUGraz.VectoCore.Tests.Integration.ADAS
 		private void TestPCC(string testname,
 			params (double start, double end, PCCStates pcc, DrivingAction action)[] data)
 		{
-			var jobName = testname.Split('_').Slice(0, -2).JoinString("_");
+			var jobName = testname.Split('_').Slice(0, -2).Join("_");
 			var cycleName = testname.Split('_').Reverse().Skip(1).First();
 			DoTestPCC(jobName, cycleName, data);
 		}