diff --git a/common.mk b/common.mk
index fa3100439c..1ebdcf48d2 100644
--- a/common.mk
+++ b/common.mk
@@ -1074,7 +1074,7 @@ BUILTIN_RB_INCS = $(BUILTIN_RB_SRCS:.rb=.rbinc)
 
 common-srcs: $(srcs_vpath)parse.c $(srcs_vpath)lex.c $(srcs_vpath)enc/trans/newline.c $(srcs_vpath)id.c \
 	     $(BUILTIN_RB_INCS) \
-	     srcs-lib srcs-ext incs
+	     srcs-lib srcs-ext incs preludes
 
 missing-srcs: $(srcdir)/missing/des_tables.c