diff --git a/preprocessor/Makefile.include b/preprocessor/Makefile.include
index 6b81179fb..a1e03a4e9 100644
--- a/preprocessor/Makefile.include
+++ b/preprocessor/Makefile.include
@@ -1,3 +1,4 @@
+AR = ar
 CPP = g++
 
 CPPFLAGS = -Wall
@@ -10,6 +11,7 @@ endif
 
 ifeq ($(CROSS_WIN32), yes)
 	CPP = i586-mingw32msvc-g++
+	AR = i586-mingw32msvc-ar
 	# Detection of uninitialized variables is buggy in MinGW and generates spurious warnings
 	CPPFLAGS += -Wno-uninitialized
 endif
diff --git a/preprocessor/macro/Makefile b/preprocessor/macro/Makefile
index e7c5084b3..fbf272714 100644
--- a/preprocessor/macro/Makefile
+++ b/preprocessor/macro/Makefile
@@ -3,7 +3,7 @@ include ../Makefile.include
 OBJ = MacroFlex.o MacroBison.o MacroDriver.o
 
 libmacro.a: $(OBJ)
-	ar crs libmacro.a $(OBJ)
+	$(AR) crs libmacro.a $(OBJ)
 
 -include $(OBJ:.o=.P)