diff --git a/coins_details.json b/coins_details.json
index 6f3c3394dc..f707395317 100644
--- a/coins_details.json
+++ b/coins_details.json
@@ -65,6 +65,19 @@
             "t2_enabled": "yes",
             "type": "coin"
         },
+        "coin2:EGEM": {
+            "links": {
+                "Homepage": "https://egem.io",
+                "MyCrypto Wallet": "https://mycrypto.com",
+                "MyEtherWallet": "https://www.myetherwallet.com"
+            },
+            "marketcap_usd": 0,
+            "name": "EtherGem",
+            "shortcut": "EGEM",
+            "t1_enabled": "yes",
+            "t2_enabled": "yes",
+            "type": "coin"
+        },
         "coin2:XLM": {
             "links": {
                 "Homepage": "https://www.stellar.org"
@@ -8144,4 +8157,4 @@
         "updated_at": 1523468285,
         "updated_at_readable": "Wed Apr 11 19:38:05 2018"
     }
-}
\ No newline at end of file
+}
diff --git a/coins_details.py b/coins_details.py
index 618d741d46..de2f1614fc 100755
--- a/coins_details.py
+++ b/coins_details.py
@@ -188,6 +188,14 @@ def update_ethereum(details):
     set_default(out, 't1_enabled', 'yes')
     set_default(out, 't2_enabled', 'yes')
     update_marketcap(out, 'ubiq')
+    
+    out = details['coins'].setdefault('coin2:EGEM', {})
+    out['type'] = 'coin'
+    set_default(out, 'shortcut', 'EGEM')
+    set_default(out, 'name', 'EtherGem')
+    set_default(out, 't1_enabled', 'yes')
+    set_default(out, 't2_enabled', 'yes')
+    update_marketcap(out, 'egem')
 
 def update_mosaics(details):
     r = requests.get('https://raw.githubusercontent.com/trezor/trezor-mcu/master/firmware/nem_mosaics.json')