diff --git a/src/Makefile.am b/src/Makefile.am
index d50247b52f5..8f22b85a801 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -937,7 +937,6 @@ libbitcoinkernel_la_SOURCES = \
   support/cleanse.cpp \
   support/lockedpool.cpp \
   sync.cpp \
-  threadinterrupt.cpp \
   txdb.cpp \
   txmempool.cpp \
   uint256.cpp \