diff --git a/graphics/netpbm/Makefile b/graphics/netpbm/Makefile
index a42925d1a8b6..209e82453d71 100644
--- a/graphics/netpbm/Makefile
+++ b/graphics/netpbm/Makefile
@@ -7,6 +7,7 @@
 
 PORTNAME=	netpbm
 PORTVERSION=	10.26.5
+PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE}
 MASTER_SITE_SUBDIR=	${PORTNAME}
diff --git a/graphics/netpbm/files/patch-lib-libpm.c b/graphics/netpbm/files/patch-lib-libpm.c
new file mode 100644
index 000000000000..a39128efa590
--- /dev/null
+++ b/graphics/netpbm/files/patch-lib-libpm.c
@@ -0,0 +1,20 @@
+--- lib/libpm.c~	Sun Nov 21 03:55:27 2004
++++ lib/libpm.c	Sat Mar 19 12:39:00 2005
+@@ -617,7 +617,7 @@
+ pm_openr(const char * const name) {
+     FILE* f;
+ 
+-    if (strcmp(name, "-") == 0)
++    if (name == NULL || strcmp(name, "-") == 0)
+         f = stdin;
+     else {
+ #ifndef VMS
+@@ -639,7 +639,7 @@
+ pm_openw(const char * const name) {
+     FILE* f;
+ 
+-    if (strcmp(name, "-") == 0)
++    if (name == NULL || strcmp(name, "-") == 0)
+         f = stdout;
+     else {
+ #ifndef VMS