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-rw-r--r--nixpkgs/pkgs/development/libraries/opencv/4.x.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/libraries/opencv/4.x.nix b/nixpkgs/pkgs/development/libraries/opencv/4.x.nix
index 58609a9186d6..a33eff4faa53 100644
--- a/nixpkgs/pkgs/development/libraries/opencv/4.x.nix
+++ b/nixpkgs/pkgs/development/libraries/opencv/4.x.nix
@@ -301,7 +301,7 @@ stdenv.mkDerivation {
     "-DCUDA_FAST_MATH=ON"
     "-DCUDA_HOST_COMPILER=${cudatoolkit.cc}/bin/cc"
     "-DCUDA_NVCC_FLAGS=--expt-relaxed-constexpr"
-    "-DNVIDIA_OPTICAL_FLOW_1_0_HEADERS_PATH=${nvidia-optical-flow-sdk}"
+    "-DNVIDIA_OPTICAL_FLOW_2_0_HEADERS_PATH=${nvidia-optical-flow-sdk}"
   ] ++ lib.optionals stdenv.isDarwin [
     "-DWITH_OPENCL=OFF"
     "-DWITH_LAPACK=OFF"