diff --git a/lib/cpp/test/Makefile.am b/lib/cpp/test/Makefile.am
index 399bebd..d0675cf 100755
--- a/lib/cpp/test/Makefile.am
+++ b/lib/cpp/test/Makefile.am
@@ -76,7 +76,7 @@
 	EnumTest
 
 if AMX_HAVE_LIBEVENT
-noinst_PROGRAMS +=
+noinst_PROGRAMS += \
 	processor_test
 check_PROGRAMS += \
 	TNonblockingServerTest