diff --git a/src/hal/olimexpoeiso.h b/src/hal/olimexpoeiso.h
index 4fcbdd6b..70856336 100644
--- a/src/hal/olimexpoeiso.h
+++ b/src/hal/olimexpoeiso.h
@@ -8,7 +8,7 @@
 #include <stdint.h>
 
 // enable only if you want to store a local paxcount table on the device
-#define HAS_SDCARD 2 // this board has a SDMMC card-reader/writer
+//#define HAS_SDCARD 2 // this board has a SDMMC card-reader/writer
 
 // enable only if you want to send paxcount via ethernet port to mqtt server
 #define HAS_MQTT 1  // use MQTT on ethernet interface