diff --git a/Makefile.am b/Makefile.am
index 606469d1..d32b14a9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -29,12 +29,12 @@ EXTRA_DIST = .prev-version .version cfg.mk PACKAGING \
 
 dist_doc_DATA = AUTHORS COPYING NEWS README THANKS TODO
 
-# Let generated files (e.g., from exampkles/) depend on this variable,
+# Let generated files (e.g., from examples/) depend on this variable,
 # to make sure they are regenerated when there are changes in Bison.
 #
 # Don't depend on $(BISON) otherwise we would rebuild these files
 # in srcdir, including during distcheck, which is forbidden.
-dependencies = $(BISON_IN) $(dist_skeletons_DATA)
+dependencies = $(BISON_IN) $(src_bison_SOURCES) $(dist_skeletons_DATA)
 
 ## Running the bison from this tarball.  To generate our own parser,
 ## but also to run the tests.  Of course, you ought to keep a sane
diff --git a/examples/c++/calc++/local.mk b/examples/c++/calc++/local.mk
index 737ce5d2..66923a6b 100644
--- a/examples/c++/calc++/local.mk
+++ b/examples/c++/calc++/local.mk
@@ -18,8 +18,6 @@
 ## Parser generation.  ##
 ## ------------------- ##
 
-# Don't depend on $(BISON) otherwise we would rebuild these files
-# in srcdir, including during distcheck, which is forbidden.
 %D%/parser.stamp: $(dependencies)
 SUFFIXES += .yy .stamp
 .yy.stamp: