diff --git a/pkgs/development/libraries/opencv/4.x.nix b/pkgs/development/libraries/opencv/4.x.nix
index adeab6b4494..a723ded6bb6 100644
--- a/pkgs/development/libraries/opencv/4.x.nix
+++ b/pkgs/development/libraries/opencv/4.x.nix
@@ -34,8 +34,6 @@
 , AVFoundation, Cocoa, VideoDecodeAcceleration, CoreMedia, MediaToolbox, bzip2
 }:
 
-assert blas.implementation == "openblas" && lapack.implementation == "openblas";
-
 let
   version = "4.3.0";