diff --git a/tests/display/test_glsl_shader.py b/tests/display/test_glsl_shader.py
index a49c9a0468..d6dd9ff5a5 100644
--- a/tests/display/test_glsl_shader.py
+++ b/tests/display/test_glsl_shader.py
@@ -615,16 +615,16 @@ def test_glsl_state_light_source(gsg):
     assert(p3d_LightSource[0].shadowViewMatrix[0][1] == 0);
     assert(p3d_LightSource[0].shadowViewMatrix[0][2] == 0);
     assert(p3d_LightSource[0].shadowViewMatrix[0][3] == 0);
-    assert(p3d_LightSource[0].shadowViewMatrix[1][0] == 0);
-    assert(p3d_LightSource[0].shadowViewMatrix[1][1] > 0.2886);
-    assert(p3d_LightSource[0].shadowViewMatrix[1][1] < 0.2887);
-    assert(p3d_LightSource[0].shadowViewMatrix[1][2] == 0);
-    assert(p3d_LightSource[0].shadowViewMatrix[1][3] == 0);
-    assert(p3d_LightSource[0].shadowViewMatrix[2][0] == -0.5);
-    assert(p3d_LightSource[0].shadowViewMatrix[2][1] == -0.5);
-    assert(p3d_LightSource[0].shadowViewMatrix[2][2] > -1.00002);
-    assert(p3d_LightSource[0].shadowViewMatrix[2][2] < -1.0);
-    assert(p3d_LightSource[0].shadowViewMatrix[2][3] == -1);
+    assert(p3d_LightSource[0].shadowViewMatrix[1][0] == 0.5);
+    assert(p3d_LightSource[0].shadowViewMatrix[1][1] == 0.5);
+    assert(p3d_LightSource[0].shadowViewMatrix[1][2] > 1.0);
+    assert(p3d_LightSource[0].shadowViewMatrix[1][2] < 1.00002);
+    assert(p3d_LightSource[0].shadowViewMatrix[1][3] == 1);
+    assert(p3d_LightSource[0].shadowViewMatrix[2][0] == 0);
+    assert(p3d_LightSource[0].shadowViewMatrix[2][1] > 0.2886);
+    assert(p3d_LightSource[0].shadowViewMatrix[2][1] < 0.2887);
+    assert(p3d_LightSource[0].shadowViewMatrix[2][2] == 0);
+    assert(p3d_LightSource[0].shadowViewMatrix[2][3] == 0);
     assert(p3d_LightSource[0].shadowViewMatrix[3][0] > -16.2736);
     assert(p3d_LightSource[0].shadowViewMatrix[3][0] < -16.2734);
     assert(p3d_LightSource[0].shadowViewMatrix[3][1] > -16.8510);