diff --git a/Makefile b/Makefile
index 40858b1..b14327a 100644
--- a/Makefile
+++ b/Makefile
@@ -12,25 +12,25 @@ export LDFLAGS :=
 all:	DStarRepeater/dstarrepeaterd DStarRepeaterConfig/dstarrepeaterconfig
 
 DStarRepeater/dstarrepeaterd:	Common/Common.a
-	make -C DStarRepeater
+	$(MAKE) -C DStarRepeater
 
 DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+	$(MAKE) -C DStarRepeaterConfig
 
 GUICommon/GUICommon.a:
-	make -C GUICommon
+	$(MAKE) -C GUICommon
 
 Common/Common.a:
-	make -C Common
+	$(MAKE) -C Common
 
 install:	all
-	make -C Data install
-	make -C DStarRepeater install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater install
+	$(MAKE) -C DStarRepeaterConfig install
 
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater clean
-	make -C DStarRepeaterConfig clean
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater clean
+	$(MAKE) -C DStarRepeaterConfig clean
 
diff --git a/Makefile.Pi b/Makefile.Pi
index 9a8f23f..1fd706f 100644
--- a/Makefile.Pi
+++ b/Makefile.Pi
@@ -12,25 +12,25 @@ export LDFLAGS :=
 all:	DStarRepeater/dstarrepeaterd DStarRepeaterConfig/dstarrepeaterconfig
 
 DStarRepeater/dstarrepeaterd:	Common/Common.a
-	make -C DStarRepeater
+	$(MAKE) -C DStarRepeater
 
 DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+	$(MAKE) -C DStarRepeaterConfig
 
 GUICommon/GUICommon.a:
-	make -C GUICommon
+	$(MAKE) -C GUICommon
 
 Common/Common.a:
-	make -C Common
+	$(MAKE) -C Common
 
 install:	all
-	make -C Data install
-	make -C DStarRepeater install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater install
+	$(MAKE) -C DStarRepeaterConfig install
 
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater clean
-	make -C DStarRepeaterConfig clean
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater clean
+	$(MAKE) -C DStarRepeaterConfig clean
 
diff --git a/MakefileGUI b/MakefileGUI
index 4774fb4..1b2bfe8 100644
--- a/MakefileGUI
+++ b/MakefileGUI
@@ -12,25 +12,25 @@ export LDFLAGS :=
 all:	DStarRepeater/dstarrepeater DStarRepeaterConfig/dstarrepeaterconfig
 
 DStarRepeater/dstarrepeater:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeater -f MakefileGUI
+	$(MAKE) -C DStarRepeater -f MakefileGUI
 
 DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+	$(MAKE) -C DStarRepeaterConfig
 
 GUICommon/GUICommon.a:
-	make -C GUICommon
+	$(MAKE) -C GUICommon
 
 Common/Common.a:
-	make -C Common
+	$(MAKE) -C Common
 
 install:	all
-	make -C Data install
-	make -C DStarRepeater -f MakefileGUI install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater -f MakefileGUI install
+	$(MAKE) -C DStarRepeaterConfig install
 
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater -f MakefileGUI clean
-	make -C DStarRepeaterConfig clean
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater -f MakefileGUI clean
+	$(MAKE) -C DStarRepeaterConfig clean
 
diff --git a/MakefileGUIPi b/MakefileGUIPi
index 201a0e0..8cd243c 100644
--- a/MakefileGUIPi
+++ b/MakefileGUIPi
@@ -12,25 +12,25 @@ export LDFLAGS :=
 all:	DStarRepeater/dstarrepeater DStarRepeaterConfig/dstarrepeaterconfig
 
 DStarRepeater/dstarrepeater:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeater -f MakefileGUI
+	$(MAKE) -C DStarRepeater -f MakefileGUI
 
 DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+	$(MAKE) -C DStarRepeaterConfig
 
 GUICommon/GUICommon.a:
-	make -C GUICommon
+	$(MAKE) -C GUICommon
 
 Common/Common.a:
-	make -C Common
+	$(MAKE) -C Common
 
 install:	all
-	make -C Data install
-	make -C DStarRepeater -f MakefileGUI install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater -f MakefileGUI install
+	$(MAKE) -C DStarRepeaterConfig install
 
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater clean
-	make -C DStarRepeaterConfig clean
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater clean
+	$(MAKE) -C DStarRepeaterConfig clean