diff --git a/src/lib/matrix/test/MatrixHelperTest.cpp b/src/lib/matrix/test/MatrixHelperTest.cpp
index 42974081a4..2b88d0b489 100644
--- a/src/lib/matrix/test/MatrixHelperTest.cpp
+++ b/src/lib/matrix/test/MatrixHelperTest.cpp
@@ -43,8 +43,8 @@ TEST(MatrixHelperTest, Helper)
 	EXPECT_FLOAT_EQ(wrap(4., 0., 1.), 0.);
 	EXPECT_FLOAT_EQ(wrap(-4., 0., 10.), 6.);
 	EXPECT_FLOAT_EQ(wrap(-18., 0., 10.), 2.);
-	EXPECT_FLOAT_EQ(wrap(-1.5, 3., 5.), 4.);
-	EXPECT_FLOAT_EQ(wrap(15.5, 3., 5.), 3.);
+	EXPECT_FLOAT_EQ(wrap(-1.5, 3., 5.), 4.5);
+	EXPECT_FLOAT_EQ(wrap(15.5, 3., 5.), 3.5);
 	EXPECT_FLOAT_EQ(wrap(-1., 30., 40.), 39.);
 	EXPECT_FLOAT_EQ(wrap(-8000., -555., 1.), -216.);
 	EXPECT_FLOAT_EQ(wrap(0., 0., 360.), 0.);