diff --git a/include/sdcard.h b/include/sdcard.h
index 051baa19..99e784cb 100644
--- a/include/sdcard.h
+++ b/include/sdcard.h
@@ -10,7 +10,7 @@
 #define SDCARD_FILE_NAME       "paxcount.%02d"
 #define SDCARD_FILE_HEADER     "date, time, wifi, bluet"
 
-bool sdcardInit( void );
+bool sdcard_init( void );
 void sdcardWriteData( uint16_t, uint16_t);
 
-#endif
\ No newline at end of file
+#endif