1 files changed, 2 insertions, 1 deletions
diff --git a/src/nix/build.cc b/src/nix/build.cc
index 850e09ce8..83d47acd4 100644
--- a/src/nix/build.cc
+++ b/src/nix/build.cc
@@ -1,3 +1,4 @@
+#include "eval.hh"
 #include "command.hh"
 #include "common-args.hh"
 #include "shared.hh"
@@ -44,7 +45,7 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixProfile
             },
             Example{
                 "To make a profile point at GNU Hello:",
-                "nix build --profile /tmp/profile nixpkgs.hello"
+                "nix build --profile /tmp/profile nixpkgs#hello"
             },
         };
     }