diff --git a/Makefile.am b/Makefile.am
index ce6740a..8370e13 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -43,9 +43,8 @@
 	ACKNOWLEDGEMENTS \
 	README_DEVELOPERS \
 	README_PACKAGERS \
-	THREADS_SYSCALLS_SIGNALS.txt \
 	README_MISSING_SYSCALL_OR_IOCTL \
-	valgrind.spec valgrind.spec.in valgrind.pc.in \
+	valgrind.spec.in valgrind.pc.in \
 	Makefile.all.am Makefile.tool.am Makefile.core-AM_CPPFLAGS.am \
 	Makefile.tool-inplace.am