diff --git a/app/src/events/components/LineupTab.tsx b/app/src/events/components/LineupTab.tsx
index 76d69229..5b03c9be 100644
--- a/app/src/events/components/LineupTab.tsx
+++ b/app/src/events/components/LineupTab.tsx
@@ -27,6 +27,13 @@ type Props = Readonly<{
       applications: (EventPositionApplication & {
         citizen: Entity;
       })[];
+      requiredVariant:
+        | (Variant & {
+            series: Series & {
+              manufacturer: Manufacturer;
+            };
+          })
+        | null;
       citizen: Entity | null;
     })[];
   };
diff --git a/app/src/events/components/Position.tsx b/app/src/events/components/Position.tsx
index 33dc807a..e2f4f8a6 100644
--- a/app/src/events/components/Position.tsx
+++ b/app/src/events/components/Position.tsx
@@ -24,11 +24,13 @@ type Props = Readonly<{
     applications: (EventPositionApplication & {
       citizen: Entity;
     })[];
-    requiredVariant?: Variant & {
-      series: Series & {
-        manufacturer: Manufacturer;
-      };
-    };
+    requiredVariant:
+      | (Variant & {
+          series: Series & {
+            manufacturer: Manufacturer;
+          };
+        })
+      | null;
     citizen: Entity | null;
   };
   showManage?: boolean;
diff --git a/app/src/events/components/ToggleEventPositionApplicationForCurrentUser.tsx b/app/src/events/components/ToggleEventPositionApplicationForCurrentUser.tsx
index d1c3c69f..90dbe636 100644
--- a/app/src/events/components/ToggleEventPositionApplicationForCurrentUser.tsx
+++ b/app/src/events/components/ToggleEventPositionApplicationForCurrentUser.tsx
@@ -20,11 +20,13 @@ import { deleteEventPositionApplicationForCurrentUser } from "../actions/deleteE
 type Props = Readonly<{
   className?: string;
   position: EventPosition & {
-    requiredVariant?: Variant & {
-      series: Series & {
-        manufacturer: Manufacturer;
-      };
-    };
+    requiredVariant:
+      | (Variant & {
+          series: Series & {
+            manufacturer: Manufacturer;
+          };
+        })
+      | null;
   };
   hasCurrentUserAlreadyApplied?: boolean;
   doesCurrentUserSatisfyRequirements?: boolean;
diff --git a/app/src/events/components/UpdateEventPositionCitizenId.tsx b/app/src/events/components/UpdateEventPositionCitizenId.tsx
index 71a95804..1a4cf862 100644
--- a/app/src/events/components/UpdateEventPositionCitizenId.tsx
+++ b/app/src/events/components/UpdateEventPositionCitizenId.tsx
@@ -21,11 +21,13 @@ type Props = Readonly<{
     applications: (EventPositionApplication & {
       citizen: Entity;
     })[];
-    requiredVariant?: Variant & {
-      series: Series & {
-        manufacturer: Manufacturer;
-      };
-    };
+    requiredVariant:
+      | (Variant & {
+          series: Series & {
+            manufacturer: Manufacturer;
+          };
+        })
+      | null;
   };
   eventCitizenSatisfyingRequirements: Entity[];
   eventCitizenNotSatisfyingRequirements: Entity[];