diff --git a/docs/Makefile.am b/docs/Makefile.am
index 40473e6..ca413b0 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -10,7 +10,7 @@ all:
 
 endif
 
-EXTRA_DIST = index.html manual.html
+EXTRA_DIST = index.html manual.html style.css
 
 clean-local:
 	$(RM) -rf html