diff --git a/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix b/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix
index c4e7689efa2..ea04ca62728 100644
--- a/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix
+++ b/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation {
   patches =
     copyPathsToStore (lib.readPathsFromFile ./. ./series)
     ++ lib.optional decryptSslTraffic ./decrypt-ssl-traffic.patch
-    ++ lib.optional mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
+    ++ lib.optionals mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
 
   postPatch =
     ''
diff --git a/pkgs/development/libraries/qt-5/5.6/qtbase/default.nix b/pkgs/development/libraries/qt-5/5.6/qtbase/default.nix
index 60a3896abaf..6f9ec560712 100644
--- a/pkgs/development/libraries/qt-5/5.6/qtbase/default.nix
+++ b/pkgs/development/libraries/qt-5/5.6/qtbase/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
     copyPathsToStore (lib.readPathsFromFile ./. ./series)
     ++ [(if stdenv.isDarwin then ./cmake-paths-darwin.patch else ./cmake-paths.patch)]
     ++ lib.optional decryptSslTraffic ./decrypt-ssl-traffic.patch
-    ++ lib.optional mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
+    ++ lib.optionals mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
 
   postPatch =
     ''
diff --git a/pkgs/development/libraries/qt-5/5.7/qtbase/default.nix b/pkgs/development/libraries/qt-5/5.7/qtbase/default.nix
index 57b64bca1ea..4bf16004ce5 100644
--- a/pkgs/development/libraries/qt-5/5.7/qtbase/default.nix
+++ b/pkgs/development/libraries/qt-5/5.7/qtbase/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
     copyPathsToStore (lib.readPathsFromFile ./. ./series)
     ++ [(if stdenv.isDarwin then ./cmake-paths-darwin.patch else ./cmake-paths.patch)]
     ++ lib.optional decryptSslTraffic ./decrypt-ssl-traffic.patch
-    ++ lib.optional mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
+    ++ lib.optionals mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
 
   postPatch =
     ''
diff --git a/pkgs/development/libraries/qt-5/5.8/qtbase/default.nix b/pkgs/development/libraries/qt-5/5.8/qtbase/default.nix
index a48c5dbb07a..280d1f9c50b 100644
--- a/pkgs/development/libraries/qt-5/5.8/qtbase/default.nix
+++ b/pkgs/development/libraries/qt-5/5.8/qtbase/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation {
   patches =
     copyPathsToStore (lib.readPathsFromFile ./. ./series)
     ++ lib.optional decryptSslTraffic ./decrypt-ssl-traffic.patch
-    ++ lib.optional mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
+    ++ lib.optionals mesaSupported [ ./dlopen-gl.patch ./mkspecs-libgl.patch ];
 
   postPatch =
     ''