diff --git a/util/test/tests/Vulkan/VK_Extended_Dynamic_State.py b/util/test/tests/Vulkan/VK_Extended_Dynamic_State.py
index 007ece752..786f9f476 100644
--- a/util/test/tests/Vulkan/VK_Extended_Dynamic_State.py
+++ b/util/test/tests/Vulkan/VK_Extended_Dynamic_State.py
@@ -49,28 +49,28 @@ class VK_Extended_Dynamic_State(rdtest.TestCase):
             0: {
                 'vtx': 0,
                 'idx': 0,
-                'gl_PerVertex_var.gl_Position': [-0.75, 0.5, 0.4, 1.0],
+                'gl_PerVertex_var.gl_Position': [-0.75, -0.5, 0.4, 1.0],
                 'vertOut.col': [0.0, 1.0, 0.0, 1.0],
                 'vertOut.uv': [0.0, 0.0, 0.0, 1.0],
             },
             1: {
                 'vtx': 1,
                 'idx': 1,
-                'gl_PerVertex_var.gl_Position': [-0.25, -0.5, 0.4, 1.0],
+                'gl_PerVertex_var.gl_Position': [-0.25, 0.5, 0.4, 1.0],
                 'vertOut.col': [0.0, 1.0, 0.0, 1.0],
                 'vertOut.uv': [0.0, 1.0, 0.0, 1.0],
             },
             2: {
                 'vtx': 2,
                 'idx': 2,
-                'gl_PerVertex_var.gl_Position': [0.25, 0.5, 0.4, 1.0],
+                'gl_PerVertex_var.gl_Position': [0.25, -0.5, 0.4, 1.0],
                 'vertOut.col': [0.0, 1.0, 0.0, 1.0],
                 'vertOut.uv': [1.0, 0.0, 0.0, 1.0],
             },
             5: {
                 'vtx': 5,
                 'idx': 5,
-                'gl_PerVertex_var.gl_Position': [0.75, 0.5, 0.6, 1.0],
+                'gl_PerVertex_var.gl_Position': [0.75, -0.5, 0.6, 1.0],
                 'vertOut.col': [0.0, 0.0, 1.0, 1.0],
                 'vertOut.uv': [1.0, 0.0, 0.0, 1.0],
             },