diff --git a/common/defs/webauthn/apps/mojeid.json b/common/defs/webauthn/apps/mojeid.json
new file mode 100644
index 0000000000..ff4a10058a
--- /dev/null
+++ b/common/defs/webauthn/apps/mojeid.json
@@ -0,0 +1,4 @@
+{
+  "label": "mojeID",
+  "webauthn": ["mojeid.cz"]
+}
diff --git a/common/defs/webauthn/apps/mojeid.png b/common/defs/webauthn/apps/mojeid.png
new file mode 100644
index 0000000000..d41338cc83
Binary files /dev/null and b/common/defs/webauthn/apps/mojeid.png differ
diff --git a/core/src/apps/webauthn/knownapps.py b/core/src/apps/webauthn/knownapps.py
index 81b63aeb98..f1210bc766 100644
--- a/core/src/apps/webauthn/knownapps.py
+++ b/core/src/apps/webauthn/knownapps.py
@@ -105,6 +105,9 @@ knownapps = {
         "label": "Microsoft",
         "use_sign_count": False,
     },
+    b"\xab-\xaf\x07C\xdex*p\x18\x9a\x0f^\xfc0\x90/\x92[\x9f\x9a\x18\xc5\xd7\x14\x1b{\x12\xf8\xa0\x10\x0c": {
+        "label": "mojeID"
+    },
     b"\xa6B\xd2\x1b|mU\xe1\xce#\xc59\x98(\xd2\xc7I\xbfjn\xf2\xfe\x03\xcc\x9e\x10\xcd\xf4\xedS\x08\x8b": {
         "label": "webauthn.bin.coffee"
     },
diff --git a/core/src/apps/webauthn/res/icon_mojeid.toif b/core/src/apps/webauthn/res/icon_mojeid.toif
new file mode 100644
index 0000000000..caea946380
Binary files /dev/null and b/core/src/apps/webauthn/res/icon_mojeid.toif differ
diff --git a/legacy/firmware/u2f_knownapps.h b/legacy/firmware/u2f_knownapps.h
index e8b2fc4579..2b30c03c0b 100644
--- a/legacy/firmware/u2f_knownapps.h
+++ b/legacy/firmware/u2f_knownapps.h
@@ -144,6 +144,11 @@ static const U2FWellKnown u2f_well_known[] = {
 		{ 0x35, 0x6c, 0x9e, 0xd4, 0xa0, 0x93, 0x21, 0xb9, 0x69, 0x5f, 0x1e, 0xaf, 0x91, 0x82, 0x03, 0xf1, 0xb5, 0x5f, 0x68, 0x9d, 0xa6, 0x1f, 0xbc, 0x96, 0x18, 0x4c, 0x15, 0x7d, 0xda, 0x68, 0x0c, 0x81 },
 		"Microsoft"
 	},
+	{
+		// WebAuthn: mojeid.cz
+		{ 0xab, 0x2d, 0xaf, 0x07, 0x43, 0xde, 0x78, 0x2a, 0x70, 0x18, 0x9a, 0x0f, 0x5e, 0xfc, 0x30, 0x90, 0x2f, 0x92, 0x5b, 0x9f, 0x9a, 0x18, 0xc5, 0xd7, 0x14, 0x1b, 0x7b, 0x12, 0xf8, 0xa0, 0x10, 0x0c },
+		"mojeID"
+	},
 	{
 		// U2F
 		{ 0x08, 0xb2, 0xa3, 0xd4, 0x19, 0x39, 0xaa, 0x31, 0x66, 0x84, 0x93, 0xcb, 0x36, 0xcd, 0xcc, 0x4f, 0x16, 0xc4, 0xd9, 0xb4, 0xc8, 0x23, 0x8b, 0x73, 0xc2, 0xf6, 0x72, 0xc0, 0x33, 0x00, 0x71, 0x97 },