diff --git a/specs-go/config.go b/specs-go/config.go
index 068edd052..91ae6b0ae 100644
--- a/specs-go/config.go
+++ b/specs-go/config.go
@@ -218,6 +218,8 @@ const (
 	UTSNamespace LinuxNamespaceType = "uts"
 	// UserNamespace for isolating user and group IDs
 	UserNamespace LinuxNamespaceType = "user"
+	// ImaNamespace for isolating PCR values
+	ImaNamespace LinuxNamespaceType = "ima"
 	// CgroupNamespace for isolating cgroup hierarchies
 	CgroupNamespace LinuxNamespaceType = "cgroup"
 )