diff --git a/gpm.go b/gpm.go
index 88fb0b826..066795dda 100644
--- a/gpm.go
+++ b/gpm.go
@@ -142,11 +142,11 @@ func main() {
 			// in the middle of directory elements, such as /tmp/git-1.8.2~rc3
 			// or C:\PROGRA~1. Only ~ as a path prefix has meaning to the shell.
 			if strings.HasPrefix(p, "~") {
-				fmt.Fprintf(os.Stderr, "go: GOPATH entry cannot start with shell metacharacter '~': %q\n", p)
+				fmt.Fprintf(os.Stderr, "gpm: GOPATH entry cannot start with shell metacharacter '~': %q\n", p)
 				os.Exit(2)
 			}
 			if build.IsLocalImport(p) {
-				fmt.Fprintf(os.Stderr, "go: GOPATH entry is relative; must be absolute path: %q.\nRun 'go help gopath' for usage.\n", p)
+				fmt.Fprintf(os.Stderr, "gpm: GOPATH entry is relative; must be absolute path: %q.\nRun 'gpm help gopath' for usage.\n", p)
 				os.Exit(2)
 			}
 		}
@@ -167,13 +167,13 @@ func main() {
 		}
 	}
 
-	fmt.Fprintf(os.Stderr, "go: unknown subcommand %q\nRun 'go help' for usage.\n", args[0])
+	fmt.Fprintf(os.Stderr, "gpm: unknown subcommand %q\nRun 'gpm help' for usage.\n", args[0])
 	setExitStatus(2)
 	exit()
 }
 
 var usageTemplate string
-var helpTemplate = `{{if .Runnable}}usage: go {{.UsageLine}}
+var helpTemplate = `{{if .Runnable}}usage: gpm {{.UsageLine}}
 
 {{end}}{{.Long | trim}}
 `