Index: x11/nvidia-driver/Makefile
===================================================================
--- x11/nvidia-driver/Makefile	(revision 317139)
+++ x11/nvidia-driver/Makefile	(working copy)
@@ -70,6 +70,10 @@
 EXTRA_PATCHES+=	${FILESDIR}/security-patch-CVE-2012-4225
 .endif
 
+.if ${NVVERSION} == 1731435
+EXTRA_PATCHES+=	${FILESDIR}/build-patch-nv_api_call
+.endif
+
 OPTIONS_DEFINE=	FREEBSD_AGP ACPI_PM LINUX DOCS
 OPTIONS_DEFAULT=	LINUX
 
Index: x11/nvidia-driver/files/build-patch-nv_api_call
===================================================================
--- x11/nvidia-driver/files/build-patch-nv_api_call	(revision 0)
+++ x11/nvidia-driver/files/build-patch-nv_api_call	(working copy)
@@ -0,0 +1,13 @@
+--- src/nv-freebsd.h.orig	2013-05-06 13:13:49.000000000 +0200
++++ src/nv-freebsd.h	2013-05-06 13:16:38.000000000 +0200
+@@ -142,8 +142,8 @@
+ 
+ MALLOC_DECLARE(M_NVIDIA);
+ 
+-RM_STATUS os_alloc_contig_pages(void **, U032);
+-void os_free_contig_pages(void *, U032);
++RM_STATUS NV_API_CALL os_alloc_contig_pages(void **, U032);
++void NV_API_CALL os_free_contig_pages(void *, U032);
+ 
+ /*
+  * Enable/Disable support for FreeBSD's AGP GART driver. Please note that