diff --git a/Makefile b/Makefile
index ef86c10..b5dbccf 100644
--- a/Makefile
+++ b/Makefile
@@ -38,8 +38,8 @@ CC            = c++
 EXT           = cpp
 
 CFLAGS        = -Wall -Wextra -Werror $(INCLUDES)
+CFLAGS       += -MMD -MP #see end-page note on header dependencie
 #CFLAGS       += -std=c++98
-#CFLAGS       += -MMD -MP #see end-page note on header dependencie
 #CFLAGS       += -g3
 
 CFLAGS_STL    = $(CFLAGS)
@@ -72,7 +72,7 @@ D_OBJS_STL    = builds_stl
 OBJS_STL      = $(SRCS:%.$(EXT)=$(D_OBJS_STL)/%.o)
 
 OBJS          = $(OBJS_FT) $(OBJS_STL)
-#DEPS          = $(OBJS:.o=.d) #see end-page note on header dependencie
+DEPS          = $(OBJS:.o=.d) #see end-page note on header dependencie
 
 
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #
@@ -121,5 +121,5 @@ re: fclean all
 # header dependencie
 # https://spin.atomicobject.com/2016/08/26/makefile-c-projects
 # https://stackoverflow.com/questions/13432127/how-to-use-the-include-directive-in-a-makefile-for-a-specific-target
-#-include $(DEPS)
+-include $(DEPS)