diff --git a/docs/Makefile.am b/docs/Makefile.am
index ce3d296b19..ba538e55a0 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -325,7 +325,7 @@ dot_html_in = \
 dot_rst = \
   $(notdir $(wildcard $(srcdir)/*.rst))
 dot_rst_html_in = \
-  $(dot_rst:%.rst=%.html)
+  $(dot_rst:%.rst=%.html.in)
 dot_html = \
   $(dot_html_generated_in:%.html.in=%.html) \
   $(dot_html_in:%.html.in=%.html) \