diff --git a/pkgs/development/libraries/opencv/3.x.nix b/pkgs/development/libraries/opencv/3.x.nix
index a65e978f981..33b1cd18757 100644
--- a/pkgs/development/libraries/opencv/3.x.nix
+++ b/pkgs/development/libraries/opencv/3.x.nix
@@ -22,7 +22,7 @@
 , enableGtk2      ? false, gtk2
 , enableGtk3      ? false, gtk3
 , enableVtk       ? false, vtk
-, enableFfmpeg    ? false, ffmpeg_3
+, enableFfmpeg    ? false, ffmpeg
 , enableGStreamer ? false, gst_all_1
 , enableTesseract ? false, tesseract, leptonica
 , enableTbb       ? false, tbb
@@ -188,7 +188,7 @@ stdenv.mkDerivation {
     ++ lib.optional enableTIFF libtiff
     ++ lib.optional enableWebP libwebp
     ++ lib.optionals enableEXR [ openexr ilmbase ]
-    ++ lib.optional enableFfmpeg ffmpeg_3
+    ++ lib.optional enableFfmpeg ffmpeg
     ++ lib.optionals (enableFfmpeg && stdenv.isDarwin)
                      [ VideoDecodeAcceleration bzip2 ]
     ++ lib.optionals enableGStreamer (with gst_all_1; [ gstreamer gst-plugins-base ])
diff --git a/pkgs/development/libraries/opencv/4.x.nix b/pkgs/development/libraries/opencv/4.x.nix
index 15c8d46b613..58609a9186d 100644
--- a/pkgs/development/libraries/opencv/4.x.nix
+++ b/pkgs/development/libraries/opencv/4.x.nix
@@ -45,7 +45,7 @@
 , enableVtk ? false
 , vtk
 , enableFfmpeg ? true
-, ffmpeg_3
+, ffmpeg
 , enableGStreamer ? true
 , gst_all_1
 , enableTesseract ? false
@@ -252,7 +252,7 @@ stdenv.mkDerivation {
     ++ lib.optional enableTIFF libtiff
     ++ lib.optional enableWebP libwebp
     ++ lib.optionals enableEXR [ openexr ilmbase ]
-    ++ lib.optional enableFfmpeg ffmpeg_3
+    ++ lib.optional enableFfmpeg ffmpeg
     ++ lib.optionals (enableFfmpeg && stdenv.isDarwin)
       [ VideoDecodeAcceleration bzip2 ]
     ++ lib.optionals enableGStreamer (with gst_all_1; [ gstreamer gst-plugins-base ])
diff --git a/pkgs/development/libraries/opencv/default.nix b/pkgs/development/libraries/opencv/default.nix
index 2575f6bb45d..005257780e4 100644
--- a/pkgs/development/libraries/opencv/default.nix
+++ b/pkgs/development/libraries/opencv/default.nix
@@ -6,7 +6,7 @@
 , enablePNG ? true, libpng
 , enableTIFF ? true, libtiff
 , enableEXR ? (!stdenv.isDarwin), openexr, ilmbase
-, enableFfmpeg ? false, ffmpeg_3
+, enableFfmpeg ? false, ffmpeg
 , enableGStreamer ? false, gst_all_1
 , enableEigen ? true, eigen
 , Cocoa, QTKit
@@ -49,7 +49,7 @@ stdenv.mkDerivation rec {
     ++ lib.optional enablePNG libpng
     ++ lib.optional enableTIFF libtiff
     ++ lib.optionals enableEXR [ openexr ilmbase ]
-    ++ lib.optional enableFfmpeg ffmpeg_3
+    ++ lib.optional enableFfmpeg ffmpeg
     ++ lib.optionals enableGStreamer (with gst_all_1; [ gstreamer gst-plugins-base ])
     ++ lib.optional enableEigen eigen
     ++ lib.optionals stdenv.isDarwin [ Cocoa QTKit ]