diff --git a/src/sbbs3/GNUmakefile b/src/sbbs3/GNUmakefile
index 1117e1fffe8238f6d2d8987c129ae7fc7c2b96df..06fb7bbba328ac9097b7eaabe3ffde6ad027ffa2 100644
--- a/src/sbbs3/GNUmakefile
+++ b/src/sbbs3/GNUmakefile
@@ -295,6 +295,7 @@ $(ECHOCFG): \
 	$(EXEODIR)/rechocfg.o \
 	$(UIFC_OBJS) \
 	$(EXEODIR)/nopen.o \
+	$(EXEODIR)/crc16.o \
 	$(EXEODIR)/str_util.o \
 	$(EXEODIR)/filewrap.o \
 	$(EXEODIR)/genwrap.o