diff --git a/cmd/godoc/main.go b/cmd/godoc/main.go
index 5e5bc22..9e70469 100644
--- a/cmd/godoc/main.go
+++ b/cmd/godoc/main.go
@@ -356,6 +356,7 @@
 		return
 	}
 
+	build.Default.GOROOT = *goroot
 	if err := godoc.CommandLine(os.Stdout, fs, pres, flag.Args()); err != nil {
 		log.Print(err)
 	}
diff --git a/godoc/cmdline.go b/godoc/cmdline.go
index b531b4d..8686159 100644
--- a/godoc/cmdline.go
+++ b/godoc/cmdline.go
@@ -134,18 +134,25 @@
 // for this.  That is, if we get passed a directory like the above, we map that
 // directory so that getPageInfo sees it as /target.
 // Returns the absolute and relative paths.
-func paths(fs vfs.NameSpace, pres *Presentation, path string) (string, string) {
+func paths(fs vfs.NameSpace, pres *Presentation, path string) (abspath, relpath string) {
 	if filepath.IsAbs(path) {
 		fs.Bind(target, vfs.OS(path), "/", vfs.BindReplace)
 		return target, target
 	}
 	if build.IsLocalImport(path) {
-		cwd, _ := os.Getwd() // ignore errors
+		cwd, err := os.Getwd()
+		if err != nil {
+			log.Printf("error while getting working directory: %v", err)
+		}
 		path = filepath.Join(cwd, path)
 		fs.Bind(target, vfs.OS(path), "/", vfs.BindReplace)
 		return target, target
 	}
-	if bp, _ := build.Import(path, "", build.FindOnly); bp.Dir != "" && bp.ImportPath != "" {
+	bp, err := build.Import(path, "", build.FindOnly)
+	if err != nil {
+		log.Printf("error while importing build package: %v", err)
+	}
+	if bp.Dir != "" && bp.ImportPath != "" {
 		fs.Bind(target, vfs.OS(bp.Dir), "/", vfs.BindReplace)
 		return target, bp.ImportPath
 	}