diff --git a/Makefile.am b/Makefile.am
index 31fbc387..69468ccf 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -55,7 +55,7 @@ EXTRA_DIST = AUTHORS CHANGES README.cares Makefile.inc Makefile.dj	   \
  Makefile.m32 Makefile.netware Makefile.msvc Makefile.Watcom $(man_MANS)   \
  config-win32.h RELEASE-NOTES libcares.pc.in buildconf get_ver.awk maketgz \
  TODO ares_build.h.in $(PDFPAGES) cares.rc README.msvc $(MSVCFILES)	   \
- $(CSOURCES) $(HHEADERS)
+ $(CSOURCES) $(HHEADERS) config-dos.h
 
 CLEANFILES = $(PDFPAGES) $(HTMLPAGES)
 
diff --git a/Makefile.dj b/Makefile.dj
index 11a18709..799611f0 100644
--- a/Makefile.dj
+++ b/Makefile.dj
@@ -44,7 +44,7 @@ all: $(OBJ_DIR) ares_config.h libcares.a ahost.exe adig.exe acountry.exe
 libcares.a: $(OBJECTS)
 	ar rs $@ $?
 
-ares_config.h: config.dos
+ares_config.h: config-dos.h
 	$(COPY) $^ $@
 
 ahost.exe: ahost.c $(OBJ_DIR)/ares_getopt.o $(OBJ_HACK)
diff --git a/config.dos b/config-dos.h
similarity index 98%
rename from config.dos
rename to config-dos.h
index a740745b..d17b6c8f 100644
--- a/config.dos
+++ b/config-dos.h
@@ -3,7 +3,7 @@
 
 
 /* ================================================================ */
-/*       ares/config.dos - Hand crafted config file for DOS         */
+/*       ares/config-dos.h - Hand crafted config file for DOS       */
 /* ================================================================ */
 
 #define PACKAGE  "c-ares"