diff --git a/app/src/main/kotlin/com/hippo/ehviewer/coil/LimitConcurrencyNetworkClient.kt b/app/src/main/kotlin/com/hippo/ehviewer/coil/LimitConcurrencyNetworkClient.kt
index bf3d08847..50a4d2489 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/coil/LimitConcurrencyNetworkClient.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/coil/LimitConcurrencyNetworkClient.kt
@@ -8,8 +8,10 @@ import com.hippo.ehviewer.Settings
 import com.hippo.ehviewer.client.URL_PREFIX_THUMB_E
 import com.hippo.ehviewer.client.URL_PREFIX_THUMB_EX
 import io.ktor.client.HttpClient
+import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.sync.Semaphore
 import kotlinx.coroutines.sync.withPermit
+import kotlinx.coroutines.withContext
 
 class LimitConcurrencyNetworkClient(val impl: NetworkClient) : NetworkClient {
     val eSemaphore = Semaphore(Settings.thumbConcurrency)
@@ -18,7 +20,7 @@ class LimitConcurrencyNetworkClient(val impl: NetworkClient) : NetworkClient {
         val url = req.url
         return when {
             URL_PREFIX_THUMB_E in url -> eSemaphore.withPermit { impl.executeRequest(req, f) }
-            URL_PREFIX_THUMB_EX in url -> exSemaphore.withPermit { impl.executeRequest(req, f) }
+            URL_PREFIX_THUMB_EX in url -> exSemaphore.withPermit { withContext(NonCancellable) { impl.executeRequest(req, f) } }
             else -> impl.executeRequest(req, f)
         }
     }