diff --git a/ports/esp32/esp32_common.cmake b/ports/esp32/esp32_common.cmake
index 8b3dac5..f66c59e 100644
--- a/ports/esp32/esp32_common.cmake
+++ b/ports/esp32/esp32_common.cmake
@@ -134,7 +134,6 @@
     spi_flash
     ulp
     vfs
-    xtensa
 )
 
 # Register the main IDF component.
@@ -161,7 +160,9 @@
 set(MICROPY_TARGET ${COMPONENT_TARGET})
 
 # Define mpy-cross flags, for use with frozen code.
+if(NOT IDF_TARGET STREQUAL "esp32c3")
 set(MICROPY_CROSS_FLAGS -march=xtensawin)
+endif()
 
 # Set compile options for this port.
 target_compile_definitions(${MICROPY_TARGET} PUBLIC