diff --git a/DMRGateway.cpp b/DMRGateway.cpp
index 1fe6e30..df25ffc 100644
--- a/DMRGateway.cpp
+++ b/DMRGateway.cpp
@@ -1460,7 +1460,7 @@ bool CDMRGateway::linkXLX(unsigned int number)
 
 	m_xlxNumber    = number;
     if (m_xlxModule) {
-        m_xlxRoom  = ((int(m_xlxModule) - 94U) + 4000U);
+        m_xlxRoom  = ((int(m_xlxModule) - 64U) + 4000U);
     } else {
         m_xlxRoom      = reflector->m_startup;
     }
diff --git a/Makefile b/Makefile
index b0ae9f3..da6d662 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 CC      = gcc
 CXX     = g++
-CFLAGS  = -g -O3 -Wall -std=c++0x -pthread
+CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -lrt
 LIBS    = -lpthread
 LDFLAGS = -g