diff --git a/cmd/fpkg/bundle.go b/cmd/fpkg/bundle.go
index eb3150b..aa1eecd 100644
--- a/cmd/fpkg/bundle.go
+++ b/cmd/fpkg/bundle.go
@@ -40,11 +40,11 @@ type bundleInfo struct {
 
 	// allow gpu access within sandbox
 	GPU bool `json:"gpu"`
-	// inner nix store path to activate-and-exec script
+	// store path to activate-and-exec script
 	Launcher string `json:"launcher"`
 	// store path to /run/current-system
 	CurrentSystem string `json:"current_system"`
-	// home-manager activation package
+	// store path to home-manager activation package
 	ActivationPackage string `json:"activation_package"`
 }
 
diff --git a/cmd/fpkg/install.go b/cmd/fpkg/install.go
index 793b953..86c6ab2 100644
--- a/cmd/fpkg/install.go
+++ b/cmd/fpkg/install.go
@@ -97,7 +97,9 @@ func actionInstall(args []string) {
 
 	if app != bundle {
 		// do not try to re-install
-		if app.Launcher == bundle.Launcher {
+		if app.CurrentSystem == bundle.CurrentSystem &&
+			app.Launcher == bundle.Launcher &&
+			app.ActivationPackage == bundle.ActivationPackage {
 			cleanup()
 			fmsg.Printf("package %q is identical to local application %q", pkgPath, app.ID)
 			fmsg.Exit(0)