diff --git a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt
index 9e10d249c0..f7c0bc3bb8 100644
--- a/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt
+++ b/apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt
@@ -768,15 +768,20 @@ object ChatController {
       val rStr = if (rhId == null) chatSendCmdRetry(ctrl, c, retryNum) else chatSendRemoteCmdRetry(ctrl, rhId.toInt(), c, retryNum)
       // coroutine was cancelled already, no need to process response (helps with apiListMembers - very heavy query in large groups)
       interruptIfCancelled()
-      val r = json.decodeFromString<API>(rStr)
-      if (log) {
-        Log.d(TAG, "sendCmd response type ${r.responseType}")
-        if (r is API.Result && (r.res is CR.Response || r.res is CR.Invalid)) {
-          Log.d(TAG, "sendCmd response json $rStr")
+      try {
+        val r = json.decodeFromString<API>(rStr)
+        if (log) {
+          Log.d(TAG, "sendCmd response type ${r.responseType}")
+          if (r is API.Result && (r.res is CR.Response || r.res is CR.Invalid)) {
+            Log.d(TAG, "sendCmd response json $rStr")
+          }
+          chatModel.addTerminalItem(TerminalItem.resp(rhId, r))
         }
-        chatModel.addTerminalItem(TerminalItem.resp(rhId, r))
+        r
+      } catch(e: Throwable) {
+        AlertManager.shared.showAlertMsg(title = "JSON error", text = "$rStr\n$e", confirmText = "Ok", shareText = true)
+        throw e
       }
-      r
     }
   }