diff --git a/SP5WWP/m17-coder/Makefile b/SP5WWP/m17-coder/Makefile
index 2271899..6ea1e22 100644
--- a/SP5WWP/m17-coder/Makefile
+++ b/SP5WWP/m17-coder/Makefile
@@ -2,4 +2,4 @@ m17-coder-sym: m17-coder-sym.c golay.c golay.h crc.c crc.h ../inc/m17.h
 	gcc -O2 -w m17-coder-sym.c golay.c crc.c -o m17-coder-sym -lm
 
 clean:
-	rm m17-coder-sym
+	rm -f m17-coder-sym
diff --git a/SP5WWP/m17-decoder/Makefile b/SP5WWP/m17-decoder/Makefile
index f9b135e..e3c07ba 100644
--- a/SP5WWP/m17-decoder/Makefile
+++ b/SP5WWP/m17-decoder/Makefile
@@ -2,4 +2,4 @@ m17-decoder-sym: m17-decoder-sym.c golay.c golay.h viterbi.c viterbi.h crc.c crc
 	gcc -Wall -O2 m17-decoder-sym.c golay.c viterbi.c crc.c -o m17-decoder-sym -lm
 
 clean:
-	rm m17-decoder-sym
+	rm -f m17-decoder-sym
diff --git a/SP5WWP/m17-packet/Makefile b/SP5WWP/m17-packet/Makefile
index 4530578..ae79b6f 100644
--- a/SP5WWP/m17-packet/Makefile
+++ b/SP5WWP/m17-packet/Makefile
@@ -1,14 +1,14 @@
+all: m17-packet-encode m17-packet-decode
+
 m17-packet-encode: m17-packet-encode.c crc.c crc.h ../inc/m17.h
 	gcc -O2 -Wall m17-packet-encode.c crc.c -o m17-packet-encode -lm
 
 m17-packet-decode: m17-packet-decode.c viterbi.c viterbi.h crc.c crc.h ../inc/m17.h
 	gcc -O2 -Wall m17-packet-decode.c viterbi.c crc.c -o m17-packet-decode -lm
 
-all: m17-packet-encode m17-packet-decode
-
 install: all
 	sudo install m17-packet-encode /usr/local/bin
 	sudo install m17-packet-decode /usr/local/bin
 
 clean:
-	rm m17-packet-encode m17-packet-decode
+	rm -f m17-packet-encode m17-packet-decode