diff --git a/internal/inventory/provisioning.go b/internal/inventory/provisioning.go
index 3fdeb641..0d4130a4 100644
--- a/internal/inventory/provisioning.go
+++ b/internal/inventory/provisioning.go
@@ -127,9 +127,10 @@ var (
 // begin.
 var PlacementKinds = []string{"dir", "access", "port", "seat", "machine", "backup"}
 
-// credentialForms are the forms a provider's offer may declare for its credential (issue 768).
+// credentialForms are the forms a provider's offer may declare for its credential (issue 768); "none" is an offer with
+// no credential, which the release's catalogue states on every such offer (issue 774).
 var credentialForms = []string{catalogue.CredentialFormShared, catalogue.CredentialFormPair,
-	catalogue.CredentialFormIssued, catalogue.CredentialFormGiven}
+	catalogue.CredentialFormIssued, catalogue.CredentialFormGiven, catalogue.CredentialFormNone}
 
 var (
 	digestShape = regexp.MustCompile(`^sha256:[0-9a-f]{64}$`)
diff --git a/internal/inventory/provisioning_test.go b/internal/inventory/provisioning_test.go
index 5df700ae..c5f19e39 100644
--- a/internal/inventory/provisioning_test.go
+++ b/internal/inventory/provisioning_test.go
@@ -316,14 +316,16 @@ func TestAPlanNamesTheCredentialFormOfEachProvidersOffer(t *testing.T) {
 	p := aPlan()
 	p.Provisions = []ProvisionedCredential{
 		{Provision: "postgres-database", Provider: "novox", ProviderModule: "postgres", CredentialForm: "pair"},
-		{Provision: "sonarr-api", Provider: "ace", ProviderModule: "sonarr", CredentialForm: "shared"}}
+		{Provision: "sonarr-api", Provider: "ace", ProviderModule: "sonarr", CredentialForm: "shared"},
+		{Provision: "artifact-store", Provider: "novox", ProviderModule: "distribution", CredentialForm: "none"}}
 	values, err := AssignmentValues(assigned, map[string]Provisioning{"g14.dunst": p})
 	if err != nil {
 		t.Fatal(err)
 	}
 	if want := `{"provision":"postgres-database","provider":"novox","provider-module":"postgres",` +
 		`"credential-form":"pair"},{"provision":"sonarr-api","provider":"ace","provider-module":"sonarr",` +
-		`"credential-form":"shared"}`; !strings.Contains(string(values["g14.dunst"]), want) {
+		`"credential-form":"shared"},{"provision":"artifact-store","provider":"novox","provider-module":"distribution",` +
+		`"credential-form":"none"}`; !strings.Contains(string(values["g14.dunst"]), want) {
 		t.Errorf("the plan's value is %s, want it to carry %s", values["g14.dunst"], want)
 	}
 	bad := aPlan()