diff --git a/ports/stm32/mpconfigport.h b/ports/stm32/mpconfigport.h
index 90e3875547..4e9118ef1a 100644
--- a/ports/stm32/mpconfigport.h
+++ b/ports/stm32/mpconfigport.h
@@ -106,7 +106,9 @@
 #define MICROPY_PY_BUILTINS_INPUT   (1)
 #define MICROPY_PY_BUILTINS_POW3    (1)
 #define MICROPY_PY_BUILTINS_HELP    (1)
+#ifndef MICROPY_PY_BUILTINS_HELP_TEXT
 #define MICROPY_PY_BUILTINS_HELP_TEXT stm32_help_text
+#endif
 #define MICROPY_PY_BUILTINS_HELP_MODULES (1)
 #define MICROPY_PY_MICROPYTHON_MEM_INFO (1)
 #define MICROPY_PY_ARRAY_SLICE_ASSIGN (1)