diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e4d2adb19c7..72b0d08b767 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18457,7 +18457,7 @@ with pkgs;
   ### SCIENCE / MATH
 
   caffe = callPackage ../applications/science/math/caffe rec {
-    cudaSupport = config.caffe.cudaSupport or config.cudaSupport or true;
+    cudaSupport = config.caffe.cudaSupport or config.cudaSupport or false;
     # CUDA 8 doesn't support GCC 6.
     stdenv = if cudaSupport then overrideCC pkgs.stdenv gcc5 else pkgs.stdenv;
   };