diff --git a/Makefile b/Makefile
index 92ba67a..ffb287a 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@ all: $(LIB) $(LIB_SHARED) $(EXEC)
 *.o: $(HFILES)
 
 libtomlcpp.a: $(OBJ)
-	ar -rcs $@ $^
+	$(AR) -rcs $@ $^
 
 libtomlcpp.so: $(OBJ)
 	$(CXX) $(CXXFLAGS) -shared -o $@ $^