diff --git a/resources/factions/russia_1965.json b/resources/factions/russia_1965.json
index 929e35d1..7f5a9811 100644
--- a/resources/factions/russia_1965.json
+++ b/resources/factions/russia_1965.json
@@ -6,7 +6,7 @@
   "aircrafts": [
     "MiG_15bis",
     "MiG_19P",
-    "MiG_21bis",
+    "MiG_21Bis",
     "Mi_8MT"
   ],
   "awacs": [
diff --git a/resources/factions/russia_1975.json b/resources/factions/russia_1975.json
index e9f23d9b..d3c99900 100644
--- a/resources/factions/russia_1975.json
+++ b/resources/factions/russia_1975.json
@@ -4,7 +4,7 @@
   "authors": "Khopa",
   "description": "",
   "aircrafts": [
-    "MiG_21bis",
+    "MiG_21Bis",
     "MiG_23MLD",
     "MiG_25PD",
     "MiG_29A",