diff --git a/grype/db/v3/namespace_test.go b/grype/db/v3/namespace_test.go
index 9e67aa8a36f..0f7c2849d3b 100644
--- a/grype/db/v3/namespace_test.go
+++ b/grype/db/v3/namespace_test.go
@@ -199,8 +199,9 @@ func Test_NamespaceForDistro(t *testing.T) {
 		allDistros.Add(d.String())
 	}
 
-	// TODO: what do we do with mariner
+	// v3 and older schemas don't include these newer distros:
 	allDistros.Remove(distro.Mariner.String())
+	allDistros.Remove(distro.Azure.String())
 
 	for _, test := range tests {
 		name := fmt.Sprintf("%s:%s", test.dist, test.version)
diff --git a/grype/distro/distro_test.go b/grype/distro/distro_test.go
index cbeec3af185..c18be758fa1 100644
--- a/grype/distro/distro_test.go
+++ b/grype/distro/distro_test.go
@@ -216,6 +216,11 @@ func Test_NewDistroFromRelease_Coverage(t *testing.T) {
 			Type:    Mariner,
 			Version: "1.0.0",
 		},
+		{
+			fixture: "test-fixtures/os/azurelinux",
+			Type:    Azure,
+			Version: "3.0.0",
+		},
 		{
 			fixture: "test-fixtures/os/rockylinux",
 			Type:    RockyLinux,
diff --git a/grype/distro/test-fixtures/os/azurelinux/etc/os-release b/grype/distro/test-fixtures/os/azurelinux/etc/os-release
new file mode 100644
index 00000000000..09028dfe941
--- /dev/null
+++ b/grype/distro/test-fixtures/os/azurelinux/etc/os-release
@@ -0,0 +1,9 @@
+NAME="Microsoft Azure Linux"
+VERSION="3.0.20240417"
+ID=azurelinux
+VERSION_ID="3.0"
+PRETTY_NAME="Microsoft Azure Linux 3.0"
+ANSI_COLOR="1;34"
+HOME_URL="https://aka.ms/azurelinux"
+BUG_REPORT_URL="https://aka.ms/azurelinux"
+SUPPORT_URL="https://aka.ms/azurelinux"