diff --git a/nixos/tests/nixops/default.nix b/nixos/tests/nixops/default.nix
index b8f747b2a19f..f7a26f2461c4 100644
--- a/nixos/tests/nixops/default.nix
+++ b/nixos/tests/nixops/default.nix
@@ -1,4 +1,6 @@
-{ pkgs, ... }:
+{ pkgs
+, testers
+, ... }:
 let
   inherit (pkgs) lib;
 
@@ -19,7 +21,7 @@ let
     passthru.override = args': testsForPackage (args // args');
   };
 
-  testLegacyNetwork = { nixopsPkg, ... }: pkgs.nixosTest ({
+  testLegacyNetwork = { nixopsPkg, ... }: testers.nixosTest ({
     name = "nixops-legacy-network";
     nodes = {
       deployer = { config, lib, nodes, pkgs, ... }: {
diff --git a/pkgs/by-name/wi/windowmaker/dockapps/wmsm-app.nix b/pkgs/by-name/wi/windowmaker/dockapps/wmsm-app.nix
index 6becfce9578b..36b555a81dd4 100644
--- a/pkgs/by-name/wi/windowmaker/dockapps/wmsm-app.nix
+++ b/pkgs/by-name/wi/windowmaker/dockapps/wmsm-app.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation  (finalAttrs: {
 
   inherit (dockapps-sources) version src;
 
-  sourceRoot = "${src.name}/wmsm.app/wmsm";
+  sourceRoot = "${finalAttrs.src.name}/wmsm.app/wmsm";
 
   buildInputs = [
     libX11
diff --git a/pkgs/by-name/wi/windowmaker/dockapps/wmsystemtray.nix b/pkgs/by-name/wi/windowmaker/dockapps/wmsystemtray.nix
index 7f17475d318f..52ba4dacd0c2 100644
--- a/pkgs/by-name/wi/windowmaker/dockapps/wmsystemtray.nix
+++ b/pkgs/by-name/wi/windowmaker/dockapps/wmsystemtray.nix
@@ -33,8 +33,8 @@ stdenv.mkDerivation (finalAttrs: {
   meta = {
     description = "A system tray for Windowmaker";
     homepage = "http://wmsystemtray.sourceforge.net";
-    license = licenses.gpl2Only;
+    license = lib.licenses.gpl2Only;
     maintainers = [ ];
-    platforms = platforms.linux;
+    platforms = lib.platforms.linux;
   };
 })
diff --git a/pkgs/games/steam/runtime-wrapped.nix b/pkgs/games/steam/runtime-wrapped.nix
index 3b6cfcd6ee12..648e012d3fe5 100644
--- a/pkgs/games/steam/runtime-wrapped.nix
+++ b/pkgs/games/steam/runtime-wrapped.nix
@@ -21,7 +21,7 @@ let
 
   gnuArch = if steamArch == "amd64" then "x86_64-linux-gnu"
             else if steamArch == "i386" then "i386-linux-gnu"
-            else abort "Unsupported architecture";
+            else throw "Unsupported architecture";
 
   libs = [ "lib/${gnuArch}" "lib" "usr/lib/${gnuArch}" "usr/lib" ];
   bins = [ "bin" "usr/bin" ];
diff --git a/pkgs/os-specific/linux/amdgpu-pro/default.nix b/pkgs/os-specific/linux/amdgpu-pro/default.nix
index 241145a24843..96339c1d164f 100644
--- a/pkgs/os-specific/linux/amdgpu-pro/default.nix
+++ b/pkgs/os-specific/linux/amdgpu-pro/default.nix
@@ -27,7 +27,7 @@ let
       "i386-linux-gnu"
     else if stdenv.hostPlatform.system == "x86_64-linux" then
       "x86_64-linux-gnu"
-    else throw "amdgpu-pro is Linux only. Sorry.";
+    else throw "amdgpu-pro is Linux only. Sorry ${stdenv.hostPlatform.system}.";
 
 in stdenv.mkDerivation rec {