diff --git a/slsDetectorServers/eigerDetectorServer/FebInterface.h b/slsDetectorServers/eigerDetectorServer/FebInterface.h
index d80785695..e89ff498d 100644
--- a/slsDetectorServers/eigerDetectorServer/FebInterface.h
+++ b/slsDetectorServers/eigerDetectorServer/FebInterface.h
@@ -3,7 +3,7 @@
 int Feb_Interface_WriteTo(unsigned int ch);
 int Feb_Interface_ReadFrom(unsigned int ch, unsigned int ntrys);
 void Feb_Interface_FebInterface();
-void Feb_Interface_SetAddress(unsigned int n, unsigned int *list);
+void Feb_Interface_SetAddress(unsigned int leftAddr, unsigned int rightAddr);
 int Feb_Interface_SetByteOrder();
 int Feb_Interface_ReadRegister(unsigned int sub_num, unsigned int reg_num,
                                unsigned int *value_read);