diff --git a/docs/INTERNALS b/docs/INTERNALS.md
similarity index 100%
rename from docs/INTERNALS
rename to docs/INTERNALS.md
diff --git a/docs/Makefile.am b/docs/Makefile.am
index edebf4e91..92aa814b3 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -33,7 +33,7 @@ SUBDIRS = examples libcurl
 
 CLEANFILES = $(GENHTMLPAGES) $(PDFPAGES)
 
-EXTRA_DIST = MANUAL BUGS CONTRIBUTE.md FAQ FEATURES INTERNALS SSLCERTS  \
+EXTRA_DIST = MANUAL BUGS CONTRIBUTE.md FAQ FEATURES INTERNALS.md SSLCERTS  \
  README.win32 RESOURCES TODO TheArtOfHttpScripting THANKS VERSIONS      \
  KNOWN_BUGS BINDINGS $(man_MANS) $(HTMLPAGES) HISTORY INSTALL           \
  $(PDFPAGES) LICENSE-MIXING README.netware INSTALL.devcpp               \