diff --git a/examples/sample.source.MEGACO/Makefile b/examples/sample.source.MEGACO/Makefile
index b1415a2..d8a930c 100644
--- a/examples/sample.source.MEGACO/Makefile
+++ b/examples/sample.source.MEGACO/Makefile
@@ -285,7 +285,7 @@
 # This file may be used as an input for make(3)
 # Remove the lines below to convert it into a pure .am file
 TARGET = megacoDump
-CFLAGS += -I. -DHAVE_CONFIG_H -DPDU=MegacoMessage
+CFLAGS += -I.  -DHAVE_CONFIG_H -DPDU=MegacoMessage
 OBJS=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
 
 all: MegacoMessage.c $(TARGET)