--- a/configure.ac
+++ b/configure.ac
@@ -399,6 +399,7 @@
 AC_SUBST(OP_DOCDIR)
 
 AC_OUTPUT(Makefile \
+	pe_counting/Makefile \
 	libpe_utils/Makefile \
 	pe_profiling/Makefile \
 	libperf_events/Makefile \