diff --git a/src/tool/render_manpage.cpp b/src/tool/render_manpage.cpp
index 52bee22b..f7310285 100644
--- a/src/tool/render_manpage.cpp
+++ b/src/tool/render_manpage.cpp
@@ -19,6 +19,7 @@
* along with dwarfs. If not, see .
*/
+#include
#include
#include