diff --git a/test/InterSatDirectViewDetectorTest.py b/test/InterSatDirectViewDetectorTest.py
index 7fa0d2a09025270719e136c1be086475ad8d562e..7a9ddb6f303edd6a2bbca855ab9da60fa6c98f1b 100644
--- a/test/InterSatDirectViewDetectorTest.py
+++ b/test/InterSatDirectViewDetectorTest.py
@@ -85,7 +85,7 @@ class GrazingHandler:
 
         testvalue = FastMath.abs(FastMath.toDegrees(topo.getAzimuth(pSlave, frame, grazingDate) -
                                                     topo.getAzimuth(pMaster, frame, grazingDate)))
-        assert -6.0e-14 < testvalue - 180.0 < 6.0e-14
+        assert -6.0e-13 < testvalue - 180.0 < 6.0e-13
 
         return Action.CONTINUE