diff --git a/src/libcharon/Makefile.am b/src/libcharon/Makefile.am
index 15ac7a6d1..46346a44d 100644
--- a/src/libcharon/Makefile.am
+++ b/src/libcharon/Makefile.am
@@ -733,6 +733,12 @@ if MONOLITHIC
 endif
 endif
 
+if USE_TPM
+if MONOLITHIC
+  libcharon_la_LIBADD += $(top_builddir)/src/libtpmtss/libtpmtss.la
+endif
+endif
+
 if MONOLITHIC
   SUBDIRS += .
 endif