diff --git a/pkgs/development/libraries/opencv/3.x.nix b/pkgs/development/libraries/opencv/3.x.nix
index 101b38d6305b..efb9a7cdbe43 100644
--- a/pkgs/development/libraries/opencv/3.x.nix
+++ b/pkgs/development/libraries/opencv/3.x.nix
@@ -167,7 +167,7 @@ stdenv.mkDerivation rec {
   '';
 
   preConfigure =
-    installExtraFiles ippicv + (
+    lib.optionalString enableIpp (installExtraFiles ippicv) + (
     lib.optionalString buildContrib ''
       cmakeFlagsArray+=("-DOPENCV_EXTRA_MODULES_PATH=$NIX_BUILD_TOP/opencv_contrib")