diff --git a/src/Makefile.am b/src/Makefile.am
index 6f80bea..7edd9e8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -13,7 +13,6 @@ barriers_SOURCES = \
     barriers.c \
     compress.c \
     stapel.c \
-    ringlist.c \
     moves.c \
     trees.c \
     treeplot.c \
@@ -21,6 +20,7 @@ barriers_SOURCES = \
     simple_set.c \
     cmdline.c \
     rnamoves.c \
+    ringlist.c \
     hash_tables.c
 
 noinst_HEADERS = \
