diff --git a/tests/cpu/GpuShader_tests.cpp b/tests/cpu/GpuShader_tests.cpp
index fa01fef1c2..8a4db962c9 100644
--- a/tests/cpu/GpuShader_tests.cpp
+++ b/tests/cpu/GpuShader_tests.cpp
@@ -665,7 +665,7 @@ float2 ocio_lut1d_0_computePos(float f)
   retVal.y = floor(dep / 4095.);
   retVal.x = dep - retVal.y * 4095.;
   retVal.x = (retVal.x + 0.5) / 4096.;
-  retVal.y = (retVal.y + 0.5) / 33.;
+  retVal.y = (retVal.y + 0.5) / 32.;
   return retVal;
 }
 
@@ -798,7 +798,7 @@ float2 ocio_lut1d_2_computePos(float f)
   retVal.y = floor(dep / 4095.);
   retVal.x = dep - retVal.y * 4095.;
   retVal.x = (retVal.x + 0.5) / 4096.;
-  retVal.y = (retVal.y + 0.5) / 33.;
+  retVal.y = (retVal.y + 0.5) / 32.;
   return retVal;
 }