diff --git a/src/Makefile.am b/src/Makefile.am
index 8b2e1bcd69c06..e9470bdbbc1ef 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -229,6 +229,7 @@ libbitcoin_server_a_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
 libbitcoin_server_a_SOURCES = \
   addrdb.cpp \
   addrman.cpp \
+  assetsdir.cpp \
   bloom.cpp \
   blockencodings.cpp \
   blockfilter.cpp \