diff --git a/lua51.changes b/lua51.changes
index e3f9e8b..5790c57 100644
--- a/lua51.changes
+++ b/lua51.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jul 20 12:36:41 UTC 2017 - tchvatal@suse.com
+
+- Properly set includedir in the .pc file
+
 -------------------------------------------------------------------
 Mon Jul 10 14:29:15 UTC 2017 - tchvatal@suse.com
 
diff --git a/lua51.spec b/lua51.spec
index d76e437..c9b56a4 100644
--- a/lua51.spec
+++ b/lua51.spec
@@ -143,7 +143,7 @@ Name: Lua %{major_version}
 Description: An Extensible Extension Language
 Version: %{version}
 Libs: -llua%{major_version} -lm
-Cflags:
+Cflags: -I${includedir}
 EOF
 install -D -m 644 lua%{major_version}.pc %{buildroot}/%{_libdir}/pkgconfig/lua%{major_version}.pc