diff --git a/cmd/tetragon/main.go b/cmd/tetragon/main.go
index e730aebdee8..5088fc1e60b 100644
--- a/cmd/tetragon/main.go
+++ b/cmd/tetragon/main.go
@@ -38,6 +38,7 @@ import (
 	"github.com/cilium/tetragon/pkg/option"
 	"github.com/cilium/tetragon/pkg/process"
 	"github.com/cilium/tetragon/pkg/ratelimit"
+	"github.com/cilium/tetragon/pkg/reader/namespace"
 	"github.com/cilium/tetragon/pkg/rthooks"
 	"github.com/cilium/tetragon/pkg/sensors/base"
 	"github.com/cilium/tetragon/pkg/sensors/program"
@@ -176,6 +177,12 @@ func tetragonExecute() error {
 		defaults.NetnsDir = viper.GetString(option.KeyNetnsDir)
 	}
 
+	// We need host namespaces info, so initialize here and fail on errors
+	ns := namespace.GetHostNamespace()
+	if ns.Mnt.Inum == 0 || ns.Pid.Inum == 0 {
+		log.Fatalf("Failed to read host mount and pid namespaces")
+	}
+
 	checkprocfs.Check()
 
 	// Setup file system mounts