diff --git a/src/dxbc/dxbc_options.cpp b/src/dxbc/dxbc_options.cpp
index c66596cd..f2e802f6 100644
--- a/src/dxbc/dxbc_options.cpp
+++ b/src/dxbc/dxbc_options.cpp
@@ -11,7 +11,7 @@ namespace dxvk {
     
     if (vendor == DxvkGpuVendor::Nvidia
      && (devProps.driverVersion < VK_MAKE_VERSION(396, 18, 0)
-      || getEnvVar(L"__GL_NextGenCompiler") != "0")) {
+      || getEnvVar(L"__GL_NextGenCompiler") == "0")) {
       // Older versions of the driver expect the
       // coordinate vector to have an extra component
       this->addExtraDrefCoordComponent = true;