diff --git a/modules/Makefile.in b/modules/Makefile.in
index 110838fd..66d1b648 100644
--- a/modules/Makefile.in
+++ b/modules/Makefile.in
@@ -45,7 +45,7 @@ ifneq "$(PERL)" ""
 # We execute this now so that we see the 'beauty' of these flags in make's output
 modperlFLAGS := $(shell $(PERL) -MExtUtils::Embed -e perl_inc -e ldopts)
 # Perl API is ugly, casting string literals to char* and redeclaring functions :(
-modperlFLAGS += -Wno-write-strings -Wno-redundant-decls
+modperlFLAGS += -Wno-write-strings -Wno-redundant-decls -Wno-missing-declarations
 PERLHOOK     := modperl_install
 else
 FILES    := $(shell echo $(FILES) | sed -e "s/modperl//")