diff --git a/src/PSE/Kernels_unit_tests.hpp b/src/PSE/Kernels_unit_tests.hpp
index 01761860af62856b1fefbd40c680eaf9229136d6..91fce1f463b3d4b212aed9de74b1d9b13be4709f 100644
--- a/src/PSE/Kernels_unit_tests.hpp
+++ b/src/PSE/Kernels_unit_tests.hpp
@@ -101,7 +101,7 @@ BOOST_AUTO_TEST_CASE( pse_ker )
 			double c1 = y.get(i).get(j);
 			double c2 = y_res.get(i).get(j);
 
-			BOOST_REQUIRE_CLOSE(c1,c2,1.0);
+			BOOST_REQUIRE_CLOSE(c1,c2,3.0);
 		}
 	}
 }