diff --git a/libgnucash/doc/doxygen.cfg.in b/libgnucash/doc/doxygen.cfg.in
index d2ca1dc910..91a92b4290 100644
--- a/libgnucash/doc/doxygen.cfg.in
+++ b/libgnucash/doc/doxygen.cfg.in
@@ -1621,11 +1621,6 @@ ALLEXTERNALS           = NO
 
 EXTERNAL_GROUPS        = YES
 
-# The PERL_PATH should be the absolute path and name of the perl script
-# interpreter (i.e. the result of `which perl').
-
-PERL_PATH              =
-
 #---------------------------------------------------------------------------
 # Configuration options related to the dot tool
 #---------------------------------------------------------------------------