diff --git a/srcpkgs/netpgp/template b/srcpkgs/netpgp/template
index 3eb98eaf0ec..20903f9e442 100644
--- a/srcpkgs/netpgp/template
+++ b/srcpkgs/netpgp/template
@@ -12,7 +12,7 @@ homepage="http://www.netbsd.org"
 distfiles="ftp://ftp.netbsd.org/pub/pkgsrc/distfiles/LOCAL_PORTS/netpgp-${version}.tar.gz"
 checksum=fbe403f037376a40afd19bc8a1786b55b67cf8092a723ef36a61d99260b66dbf
 
-CFLAGS="-Wno-error=cpp -Wno-format-truncation -Wno-stringop-truncation -Wno-stringop-overflow"
+CFLAGS="-Wno-error=cpp -Wno-format-truncation -Wno-stringop-truncation -Wno-stringop-overflow -Wno-error=format-overflow"
 
 pre_configure() {
 	autoreconf -fi