diff --git a/cddlib.changes b/cddlib.changes
index 9f28605..221e492 100644
--- a/cddlib.changes
+++ b/cddlib.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Dec 25 21:51:31 UTC 2017 - jengelh@inai.de
+
+- Switch include directory to /usr/include/cdd as that seems to be
+  expected by downstream programs (like gfan).
+
 -------------------------------------------------------------------
 Mon Feb 20 23:47:31 UTC 2017 - jengelh@inai.de
 
diff --git a/cddlib.spec b/cddlib.spec
index 99b860e..f1fb774 100644
--- a/cddlib.spec
+++ b/cddlib.spec
@@ -68,7 +68,7 @@ of linear inequalities.
 
 %build
 autoreconf -fi
-%configure --enable-shared --disable-static
+%configure --enable-shared --disable-static --includedir="%_includedir/cdd"
 make %{?_smp_mflags} V=1
 
 %install