diff --git a/src/Makefile.am b/src/Makefile.am
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -269,7 +269,7 @@
   index/base.cpp \
   index/txindex.cpp \
   init.cpp \
-  interfaces/chain.h \
+  interfaces/chain.cpp \
   interfaces/handler.cpp \
   interfaces/node.cpp \
   dbwrapper.cpp \