diff --git a/cmd/krew/cmd/install.go b/cmd/krew/cmd/install.go
index 8c7fb137..66b7fd95 100644
--- a/cmd/krew/cmd/install.go
+++ b/cmd/krew/cmd/install.go
@@ -89,6 +89,9 @@ Remarks:
 			for _, name := range pluginNames {
 				plugin, err := indexscanner.LoadPluginFileFromFS(paths.IndexPluginsPath(), name)
 				if err != nil {
+					if os.IsNotExist(err) {
+						return errors.Errorf("plugin %q does not exist in the plugin index", name)
+					}
 					return errors.Wrapf(err, "failed to load plugin %q from the index", name)
 				}
 				install = append(install, plugin)
diff --git a/cmd/krew/cmd/upgrade.go b/cmd/krew/cmd/upgrade.go
index 09119546..94287836 100644
--- a/cmd/krew/cmd/upgrade.go
+++ b/cmd/krew/cmd/upgrade.go
@@ -64,6 +64,9 @@ kubectl krew upgrade foo bar"`,
 			for _, name := range pluginNames {
 				plugin, err := indexscanner.LoadPluginFileFromFS(paths.IndexPluginsPath(), name)
 				if err != nil {
+					if os.IsNotExist(err) {
+						return errors.Errorf("plugin %q does not exist in the plugin index", name)
+					}
 					return errors.Wrapf(err, "failed to load the plugin manifest for plugin %s", name)
 				}
 
diff --git a/hack/run-tests.sh b/hack/run-tests.sh
index 75780dac..a5bacee8 100755
--- a/hack/run-tests.sh
+++ b/hack/run-tests.sh
@@ -40,9 +40,6 @@ trap print_status EXIT
 print_with_color "$color_blue" 'Checking boilerplate'
 "$SCRIPTDIR"/verify-boilerplate.sh
 
-print_with_color "$color_blue" 'Running gofmt'
-"$SCRIPTDIR"/verify-gofmt.sh
-
 print_with_color "$color_blue" 'Running tests'
 go test -short -race sigs.k8s.io/krew/...