diff --git a/firmware/u2f_knownapps.h b/firmware/u2f_knownapps.h
index b57bbcb024..4320910afc 100644
--- a/firmware/u2f_knownapps.h
+++ b/firmware/u2f_knownapps.h
@@ -28,7 +28,7 @@ typedef struct {
 	const char *appname;
 } U2FWellKnown;
 
-static const U2FWellKnown u2f_well_known[3] = {
+static const U2FWellKnown u2f_well_known[4] = {
     { 
         // https://www.gstatic.com/securitykey/origins.json
         { 0xa5,0x46,0x72,0xb2,0x22,0xc4,0xcf,0x95,
@@ -52,6 +52,14 @@ static const U2FWellKnown u2f_well_known[3] = {
 		  0xd9,0x1a,0x22,0xfe,0x6b,0x29,0xc0,0xcd,
 		  0xf7,0x80,0x55,0x30,0x84,0x2a,0xf5,0x81 },
         "Dropbox"
+    },
+    {
+        // https://slushpool.com/static/security/u2f.json
+        { 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 },
+        "Slush Pool"
     }
 };