diff --git a/dumux/material/fluidmatrixinteractions/Makefile.am b/dumux/material/fluidmatrixinteractions/Makefile.am
index ea3a77807f52ad529505eafc9c989581d6d90ac5..5f25e8ceb5fee5b38e57f35f0bb6aada697c1785 100644
--- a/dumux/material/fluidmatrixinteractions/Makefile.am
+++ b/dumux/material/fluidmatrixinteractions/Makefile.am
@@ -1,5 +1,6 @@
 SUBDIRS = 2p 2pia 3p mp
 
 fluidmatrixinteractionsdir = $(includedir)/dumux/material/fluidmatrixinteractions
+fluidmatrixinteractions_HEADERS = *.hh
 
 include $(top_srcdir)/am/global-rules
diff --git a/dumux/material/fluidmatrixinteractions/diffusivityconstanttau.hh b/dumux/material/fluidmatrixinteractions/diffusivityconstanttau.hh
index f63aac71e4d0cd5ed28ba457d56e8adfd467489f..fdb7e2c5e95f295aa018d6aee4aceadd447dfd40 100644
--- a/dumux/material/fluidmatrixinteractions/diffusivityconstanttau.hh
+++ b/dumux/material/fluidmatrixinteractions/diffusivityconstanttau.hh
@@ -24,6 +24,7 @@
 #ifndef DIFFUSIVITY_CONSTANT_TAU_HH
 #define DIFFUSIVITY_CONSTANT_TAU_HH
 
+#include <dumux/common/parameters.hh>
 #include <algorithm>
 
 namespace Dumux