diff --git a/tests/Makefile.am b/tests/Makefile.am
index 4dd592210..448f37a71 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -115,7 +115,7 @@ MODFILES = \
 	kalman_filter_smoother/fs2000.mod \
 	kalman_filter_smoother/fs2000_1.mod \
 	kalman_filter_smoother/fs2000_2.mod \
-	kalman_filter_smoother/fs2000a.mod 
+	kalman_filter_smoother/fs2000a.mod
 
 EXTRA_DIST = \
 	$(MODFILES) \