diff --git a/ext/digest/md5/depend b/ext/digest/md5/depend
index 0353e7a40d..ea1ceec7fd 100644
--- a/ext/digest/md5/depend
+++ b/ext/digest/md5/depend
@@ -326,5 +326,6 @@ md5init.o: $(hdrdir)/ruby/subst.h
 md5init.o: $(srcdir)/../defs.h
 md5init.o: $(srcdir)/../digest.h
 md5init.o: md5.h
+md5init.o: md5cc.h
 md5init.o: md5init.c
 # AUTOGENERATED DEPENDENCIES END
diff --git a/ext/digest/sha1/depend b/ext/digest/sha1/depend
index a4e454d214..48aaef158b 100644
--- a/ext/digest/sha1/depend
+++ b/ext/digest/sha1/depend
@@ -326,5 +326,6 @@ sha1init.o: $(hdrdir)/ruby/subst.h
 sha1init.o: $(srcdir)/../defs.h
 sha1init.o: $(srcdir)/../digest.h
 sha1init.o: sha1.h
+sha1init.o: sha1cc.h
 sha1init.o: sha1init.c
 # AUTOGENERATED DEPENDENCIES END
diff --git a/ext/digest/sha2/depend b/ext/digest/sha2/depend
index 2fb598aa48..47a859068c 100644
--- a/ext/digest/sha2/depend
+++ b/ext/digest/sha2/depend
@@ -325,5 +325,6 @@ sha2init.o: $(hdrdir)/ruby/st.h
 sha2init.o: $(hdrdir)/ruby/subst.h
 sha2init.o: $(srcdir)/../digest.h
 sha2init.o: sha2.h
+sha2init.o: sha2cc.h
 sha2init.o: sha2init.c
 # AUTOGENERATED DEPENDENCIES END