diff --git a/Shaders/ffx_cas_sharpen_pass.compute b/Shaders/ffx_cas_sharpen_pass.compute
index a8bd30d..615bdba 100644
--- a/Shaders/ffx_cas_sharpen_pass.compute
+++ b/Shaders/ffx_cas_sharpen_pass.compute
@@ -2,6 +2,7 @@
 
 #define FFX_CAS_OPTION_SHARPEN_ONLY     1
 #define FFX_CAS_COLOR_SPACE_CONVERSION  0   // Linear color space
+#define FFX_CAS_USE_PRECISE_MATH        1
 
 #define FFX_GPU         // Compiling for GPU
 #define FFX_HLSL        // Compile for plain HLSL