diff --git a/ElementX/Sources/Screens/RoomMemberDetailsScreen/RoomMemberDetailsScreenViewModel.swift b/ElementX/Sources/Screens/RoomMemberDetailsScreen/RoomMemberDetailsScreenViewModel.swift
index e2776ae83..1c2ffbc6f 100644
--- a/ElementX/Sources/Screens/RoomMemberDetailsScreen/RoomMemberDetailsScreenViewModel.swift
+++ b/ElementX/Sources/Screens/RoomMemberDetailsScreen/RoomMemberDetailsScreenViewModel.swift
@@ -108,7 +108,10 @@ class RoomMemberDetailsScreenViewModel: RoomMemberDetailsScreenViewModelType, Ro
         state.isProcessingIgnoreRequest = false
         switch result {
         case .success:
-            state.memberDetails?.isIgnored = true
+            var details = state.memberDetails
+            details?.isIgnored = true
+            state.memberDetails = details
+            
             updateMembers()
         case .failure:
             state.bindings.alertInfo = .init(id: .unknown)
@@ -126,7 +129,10 @@ class RoomMemberDetailsScreenViewModel: RoomMemberDetailsScreenViewModelType, Ro
         state.isProcessingIgnoreRequest = false
         switch result {
         case .success:
-            state.memberDetails?.isIgnored = false
+            var details = state.memberDetails
+            details?.isIgnored = false
+            state.memberDetails = details
+            
             updateMembers()
         case .failure:
             state.bindings.alertInfo = .init(id: .unknown)
diff --git a/changelog.d/pr-2553.bugfix b/changelog.d/pr-2553.bugfix
new file mode 100644
index 000000000..929447251
--- /dev/null
+++ b/changelog.d/pr-2553.bugfix
@@ -0,0 +1 @@
+Fix crashes when blocking/unblocking users
\ No newline at end of file