diff --git a/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt b/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt
index 6f942b8..ba6b903 100644
--- a/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt
+++ b/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt
@@ -119,7 +119,7 @@ public class KtorMeetacyEngine(
             block()
         } catch (exception: ResponseException) {
             val response = try {
-                json.decodeFromString<ServerResponse.Error>(exception.response.body())
+                json.decodeFromString<ServerResponse<Nothing>>(exception.response.body()) as ServerResponse.Error
             } catch (exception: Throwable) {
                 throw MeetacyInternalException(cause = exception)
             }