diff --git a/tests/Makefile.am b/tests/Makefile.am
index 63d94f0..08cdc17 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -194,7 +194,7 @@
 
 TESTSUITE = $(srcdir)/testsuite
 
-update_exp:
+update_exp: $(check_PROGRAMS)
 	rlcmac/RLCMACTest \
 		>$(srcdir)/rlcmac/RLCMACTest.ok \
 		2>$(srcdir)/rlcmac/RLCMACTest.err