diff --git a/YSFGateway/Makefile b/YSFGateway/Makefile
index 4830908..104837d 100644
--- a/YSFGateway/Makefile
+++ b/YSFGateway/Makefile
@@ -2,11 +2,11 @@ CC      = cc
 CXX     = c++
 
 # Use the following CFLAGS and LIBS if you don't want to use gpsd.
-CFLAGS  = -g -O3 -Wall -std=c++0x -pthread
+CFLAGS  = -g -O3 -Wall -DHAVE_LOG_H -std=c++0x -pthread
 LIBS    = -lm -lpthread
 
 # Use the following CFLAGS and LIBS if you do want to use gpsd.
-#CFLAGS  = -g -O3 -Wall -DUSE_GPSD -std=c++0x -pthread
+#CFLAGS  = -g -O3 -Wall -DHAVE_LOG_H -DUSE_GPSD -std=c++0x -pthread
 #LIBS    = -lm -lpthread -lgps
 
 LDFLAGS = -g