diff --git a/Makefile b/Makefile
index f7fe313..3000e1e 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ all: nostril docs
 
 docs: doc/nostril.1
 
-doc/nostril.1: README.txt
+doc/nostril.1: README.md
 	scdoc < $^ > $@
 
 version: nostril.c
diff --git a/README.txt b/README.md
similarity index 100%
rename from README.txt
rename to README.md