diff --git a/components/esp_modem/examples/simple_cmux_client/sdkconfig.defaults b/components/esp_modem/examples/simple_cmux_client/sdkconfig.defaults
index 50b2fb0dd..7841f6833 100644
--- a/components/esp_modem/examples/simple_cmux_client/sdkconfig.defaults
+++ b/components/esp_modem/examples/simple_cmux_client/sdkconfig.defaults
@@ -7,4 +7,5 @@ CONFIG_LWIP_PPP_ENABLE_IPV6=n
 CONFIG_COMPILER_CXX_EXCEPTIONS=y
 CONFIG_PARTITION_TABLE_TWO_OTA=y
 CONFIG_NEWLIB_STDOUT_LINE_ENDING_LF=y
-CONFIG_NEWLIB_STDIN_LINE_ENDING_LF=y
\ No newline at end of file
+CONFIG_NEWLIB_STDIN_LINE_ENDING_LF=y
+CONFIG_MAIN_TASK_STACK_SIZE=8192
\ No newline at end of file