diff --git a/Makefile.in b/Makefile.in
index 77df76e..33b02df 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -243,6 +243,7 @@ install-dirs:
 	mkdir $(LIB)/big
 	mkdir $(LIB)/cig
 	mkdir $(LIB)/doc
+	mkdir $(LIB)/doc/scsh-manual
 	mkdir $(LIB)/env
 	mkdir $(LIB)/link
 	mkdir $(LIB)/misc
diff --git a/doc/install.txt.s48-0.36 b/doc/install.s48-0.36.txt
similarity index 100%
rename from doc/install.txt.s48-0.36
rename to doc/install.s48-0.36.txt
diff --git a/doc/olins-changes b/doc/olins-changes.txt
similarity index 100%
rename from doc/olins-changes
rename to doc/olins-changes.txt