diff --git a/ports/esp32/esp32_common.cmake b/ports/esp32/esp32_common.cmake
index 71b42a590d..a3637870f4 100644
--- a/ports/esp32/esp32_common.cmake
+++ b/ports/esp32/esp32_common.cmake
@@ -42,7 +42,7 @@ list(APPEND MICROPY_SOURCE_LIB
     ${MICROPY_DIR}/lib/littlefs/lfs1_util.c
     ${MICROPY_DIR}/lib/littlefs/lfs2.c
     ${MICROPY_DIR}/lib/littlefs/lfs2_util.c
-    #${MICROPY_DIR}/lib/mbedtls_errors/esp32_mbedtls_errors.c
+    ${MICROPY_DIR}/lib/mbedtls_errors/esp32_mbedtls_errors.c
     ${MICROPY_DIR}/lib/oofatfs/ff.c
     ${MICROPY_DIR}/lib/oofatfs/ffunicode.c
 )