diff --git a/nix.spec.in b/nix.spec.in
index e3b2d18ed..9b16c79f1 100644
--- a/nix.spec.in
+++ b/nix.spec.in
@@ -70,6 +70,7 @@ fi
 %{_prefix}/bin
 %{_prefix}/lib
 %{_prefix}/libexec
+%{_prefix}/include
 %{_prefix}/var
 %{_prefix}/share
 %{_prefix}/man