diff --git a/SP5WWP/m17-coder/Makefile b/SP5WWP/m17-coder/Makefile
index 1293125..ca184c9 100644
--- a/SP5WWP/m17-coder/Makefile
+++ b/SP5WWP/m17-coder/Makefile
@@ -1,5 +1,5 @@
-m17-coder-sym: m17-coder-sym.c golay.c crc.c
-	gcc -O2 -w -lm m17-coder-sym.c golay.c crc.c -o m17-coder-sym
+m17-coder-sym: m17-coder-sym.c golay.c
+	gcc -O2 -w -lm m17-coder-sym.c golay.c -o m17-coder-sym
 
 clean:
 	rm m17-coder-sym