diff --git a/src/dbus-interactive-auth.patch b/src/dbus-interactive-auth.patch
new file mode 100644
index 0000000..944089a
--- /dev/null
+++ b/src/dbus-interactive-auth.patch
@@ -0,0 +1,110 @@
+--- a/src/fprintd-dbus.c	2020-12-04 16:38:28.527712626 +0100
++++ b/src/fprintd-dbus.c	2020-12-04 16:40:03.561692619 +0100
+@@ -1149,7 +1149,7 @@
+     "ListEnrolledFingers",
+     g_variant_new ("(s)",
+                    arg_username),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     callback,
+@@ -1213,7 +1213,7 @@
+     "ListEnrolledFingers",
+     g_variant_new ("(s)",
+                    arg_username),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     error);
+@@ -1253,7 +1253,7 @@
+     "DeleteEnrolledFingers",
+     g_variant_new ("(s)",
+                    arg_username),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     callback,
+@@ -1312,7 +1312,7 @@
+     "DeleteEnrolledFingers",
+     g_variant_new ("(s)",
+                    arg_username),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     error);
+@@ -1348,7 +1348,7 @@
+   g_dbus_proxy_call (G_DBUS_PROXY (proxy),
+     "DeleteEnrolledFingers2",
+     g_variant_new ("()"),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     callback,
+@@ -1404,7 +1404,7 @@
+   _ret = g_dbus_proxy_call_sync (G_DBUS_PROXY (proxy),
+     "DeleteEnrolledFingers2",
+     g_variant_new ("()"),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     error);
+@@ -1443,7 +1443,7 @@
+     "Claim",
+     g_variant_new ("(s)",
+                    arg_username),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     callback,
+@@ -1502,7 +1502,7 @@
+     "Claim",
+     g_variant_new ("(s)",
+                    arg_username),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     error);
+@@ -1633,7 +1633,7 @@
+     "VerifyStart",
+     g_variant_new ("(s)",
+                    arg_finger_name),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     callback,
+@@ -1692,7 +1692,7 @@
+     "VerifyStart",
+     g_variant_new ("(s)",
+                    arg_finger_name),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     error);
+@@ -1823,7 +1823,7 @@
+     "EnrollStart",
+     g_variant_new ("(s)",
+                    arg_finger_name),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     callback,
+@@ -1882,7 +1882,7 @@
+     "EnrollStart",
+     g_variant_new ("(s)",
+                    arg_finger_name),
+-    G_DBUS_CALL_FLAGS_NONE,
++    G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION,
+     -1,
+     cancellable,
+     error);
diff --git a/src/meson.build b/src/meson.build
index a35d3c1..1df6216 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -14,7 +14,8 @@ foreach interface_name: dbus_interfaces
     )
 endforeach
 
-fprintd_dbus_sources = gnome.gdbus_codegen('fprintd-dbus',
+# NOTE: We should pass "--glib-min-required 2.64" but cannot
+fprintd_dbus_sources_base = gnome.gdbus_codegen('fprintd-dbus',
     sources: dbus_interfaces_files,
     autocleanup: 'all',
     interface_prefix: 'net.reactivated.Fprint.',
@@ -22,6 +23,23 @@ fprintd_dbus_sources = gnome.gdbus_codegen('fprintd-dbus',
     object_manager: true,
 )
 
+# FIXME: remove this and just use fprintd_dbus_sources when we're on glib 2.64
+fprintd_dbus_sources = [
+    fprintd_dbus_sources_base[1] # header file
+]
+
+fprintd_dbus_sources += custom_target('fprintd-dbus-interactive',
+    input: fprintd_dbus_sources_base[0], # c file,
+    output: 'fprintd-dbus-interactive.c',
+    command: [
+        find_program('patch'),
+        '-p1',
+        '--merge',
+        '@INPUT@',
+        files('dbus-interactive-auth.patch'),
+        '-o', '@OUTPUT@',
+    ])
+
 fprintd_enum_files = gnome.mkenums_simple('fprintd-enums',
   sources: 'fprintd.h',
 )