diff --git a/src/tools/pginclude/cpluspluscheck b/src/tools/pginclude/cpluspluscheck
index dc45bd087b..531fab904c 100755
--- a/src/tools/pginclude/cpluspluscheck
+++ b/src/tools/pginclude/cpluspluscheck
@@ -110,6 +110,9 @@ do
 	test "$f" = src/pl/plpython/spiexceptions.h && continue
 	test "$f" = src/pl/tcl/pltclerrcodes.h && continue
 
+	# Also not meant to be included standalone.
+	test "$f" = src/include/common/unicode_combining_table.h && continue
+
 	# We can't make these Bison output files compilable standalone
 	# without using "%code require", which old Bison versions lack.
 	# parser/gram.h will be included by parser/gramparse.h anyway.
diff --git a/src/tools/pginclude/headerscheck b/src/tools/pginclude/headerscheck
index 440bde88a7..d652d6b6f9 100755
--- a/src/tools/pginclude/headerscheck
+++ b/src/tools/pginclude/headerscheck
@@ -106,6 +106,9 @@ do
 	test "$f" = src/pl/plpython/spiexceptions.h && continue
 	test "$f" = src/pl/tcl/pltclerrcodes.h && continue
 
+	# Also not meant to be included standalone.
+	test "$f" = src/include/common/unicode_combining_table.h && continue
+
 	# We can't make these Bison output files compilable standalone
 	# without using "%code require", which old Bison versions lack.
 	# parser/gram.h will be included by parser/gramparse.h anyway.