diff --git a/src/nix/shell.cc b/src/nix/dev-shell.cc
similarity index 100%
rename from src/nix/shell.cc
rename to src/nix/dev-shell.cc
diff --git a/src/nix/run.cc b/src/nix/run.cc
index 901b87fbb..f14e221e2 100644
--- a/src/nix/run.cc
+++ b/src/nix/run.cc
@@ -57,11 +57,11 @@ struct RunCommon : virtual Command
     }
 };
 
-struct CmdRun : InstallablesCommand, RunCommon, MixEnvironment
+struct CmdShell : InstallablesCommand, RunCommon, MixEnvironment
 {
     std::vector<std::string> command = { getEnv("SHELL").value_or("bash") };
 
-    CmdRun()
+    CmdShell()
     {
         mkFlag()
             .longName("command")
@@ -85,19 +85,19 @@ struct CmdRun : InstallablesCommand, RunCommon, MixEnvironment
         return {
             Example{
                 "To start a shell providing GNU Hello from NixOS 17.03:",
-                "nix run -f channel:nixos-17.03 hello"
+                "nix shell -f channel:nixos-17.03 hello"
             },
             Example{
                 "To start a shell providing youtube-dl from your 'nixpkgs' channel:",
-                "nix run nixpkgs#youtube-dl"
+                "nix shell nixpkgs#youtube-dl"
             },
             Example{
                 "To run GNU Hello:",
-                "nix run nixpkgs#hello -c hello --greeting 'Hi everybody!'"
+                "nix shell nixpkgs#hello -c hello --greeting 'Hi everybody!'"
             },
             Example{
                 "To run GNU Hello in a chroot store:",
-                "nix run --store ~/my-nix nixpkgs#hello -c hello"
+                "nix shell --store ~/my-nix nixpkgs#hello -c hello"
             },
         };
     }
@@ -141,13 +141,13 @@ struct CmdRun : InstallablesCommand, RunCommon, MixEnvironment
     }
 };
 
-static auto r1 = registerCommand<CmdRun>("run");
+static auto r1 = registerCommand<CmdShell>("shell");
 
-struct CmdApp : InstallableCommand, RunCommon
+struct CmdRun : InstallableCommand, RunCommon
 {
     std::vector<std::string> args;
 
-    CmdApp()
+    CmdRun()
     {
         expectArgs("args", &args);
     }
@@ -162,7 +162,7 @@ struct CmdApp : InstallableCommand, RunCommon
         return {
             Example{
                 "To run Blender:",
-                "nix app blender-bin"
+                "nix run blender-bin"
             },
         };
     }
@@ -192,7 +192,7 @@ struct CmdApp : InstallableCommand, RunCommon
     }
 };
 
-static auto r2 = registerCommand<CmdApp>("app");
+static auto r2 = registerCommand<CmdRun>("run");
 
 void chrootHelper(int argc, char * * argv)
 {