diff --git a/soes/esc_coe.h b/soes/esc_coe.h
index 4476b5f..4d3af27 100644
--- a/soes/esc_coe.h
+++ b/soes/esc_coe.h
@@ -105,6 +105,7 @@ typedef struct
 
 void ESC_coeprocess (void);
 int16_t SDO_findsubindex (int16_t nidx, uint8_t subindex);
+int32_t SDO_findobject (uint16_t index);
 uint16_t sizeOfPDO (uint16_t index, int * nmappings, _SMmap * sm, int max_mappings);
 void SDO_abort (uint16_t index, uint8_t subindex, uint32_t abortcode);
 void COE_initDefaultValues (void);