diff --git a/pkgs/os-specific/linux/mwprocapture/default.nix b/pkgs/os-specific/linux/mwprocapture/default.nix
index 72095bc8cdab..f6f6c10112a7 100644
--- a/pkgs/os-specific/linux/mwprocapture/default.nix
+++ b/pkgs/os-specific/linux/mwprocapture/default.nix
@@ -15,17 +15,15 @@ let
 in
 stdenv.mkDerivation rec {
   name = "mwprocapture-1.2.${version}-${kernel.version}";
-  version = "3773";
+  version = "3950";
 
   src = fetchurl {
     url = "http://www.magewell.com/files/drivers/ProCaptureForLinux_${version}.tar.gz";
-    sha256 = "1ri7c4l4xgkhpz0f15jra1p7mpzi8ir6lpwjm7q7hc9m4cvxcs1g";
+    sha256 = "1im3k533r6c0dx08h9wjfbhadzk7zawrxxaz7v94c92m3q133ys6";
   };
 
   nativeBuildInputs = [ kernel.moduleBuildDependencies ];
 
-  patches = [ ./linux_4_14_fix.patch ];
-
   preConfigure =
   ''
     cd ./src
diff --git a/pkgs/os-specific/linux/mwprocapture/linux_4_14_fix.patch b/pkgs/os-specific/linux/mwprocapture/linux_4_14_fix.patch
deleted file mode 100644
index 94da5a00a2e2..000000000000
--- a/pkgs/os-specific/linux/mwprocapture/linux_4_14_fix.patch
+++ /dev/null
@@ -1,71 +0,0 @@
-diff -Naur ProCaptureForLinux_3773/src/sources/ospi/linux-file.c ProCaptureForLinux_3773_new/src/sources/ospi/linux-file.c
---- ProCaptureForLinux_3773/src/sources/ospi/linux-file.c	2017-12-15 01:59:57.000000000 -0800
-+++ ProCaptureForLinux_3773_new/src/sources/ospi/linux-file.c	2017-12-23 22:47:33.666823299 -0800
-@@ -7,8 +7,9 @@
- 
- #include "linux-file.h"
- 
--#include <asm/uaccess.h>
- #include <linux/sched.h>
-+#include <asm/uaccess.h>
-+#include <linux/version.h>
- 
- struct file *linux_file_open(const char *path, int flags, int mode)
- {
-@@ -28,29 +29,36 @@
-     filp_close(file, NULL);
- }
- 
--ssize_t linux_file_read(struct file *file, loff_t offset, unsigned char *data, size_t size)
-+ssize_t linux_file_read(struct file *file, loff_t offset, void *data, size_t size)
- {
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)
-+    return(kernel_read(file, data, size, &offset));
-+#else
-     mm_segment_t oldfs;
-     ssize_t ret;
- 
-     oldfs = get_fs();
-     set_fs(get_ds());
--    ret = vfs_read(file, data, size, &offset);
-+    ret = vfs_read(file, (unsigned char *)data, size, &offset);
-     set_fs(oldfs);
- 
-     return ret;
-+#endif
- }
- 
--ssize_t linux_file_write(struct file *file, loff_t offset, unsigned char *data, size_t size)
-+ssize_t linux_file_write(struct file *file, loff_t offset, const void *data, size_t size)
- {
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)
-+    return(kernel_write(file, data, size, &offset));
-+#else
-     mm_segment_t oldfs;
-     ssize_t ret;
- 
-     oldfs = get_fs();
-     set_fs(get_ds());
--    ret = vfs_write(file, data, size, &offset);
-+    ret = vfs_write(file, (const unsigned char *)data, size, &offset);
-     set_fs(oldfs);
- 
-     return ret;
-+#endif
- }
--
-diff -Naur ProCaptureForLinux_3773/src/sources/ospi/linux-file.h ProCaptureForLinux_3773_new/src/sources/ospi/linux-file.h
---- ProCaptureForLinux_3773/src/sources/ospi/linux-file.h	2017-12-15 01:59:57.000000000 -0800
-+++ ProCaptureForLinux_3773_new/src/sources/ospi/linux-file.h	2017-12-23 22:46:22.028545189 -0800
-@@ -13,9 +13,9 @@
- 
- void linux_file_close(struct file *file);
- 
--ssize_t linux_file_read(struct file *file, loff_t offset, unsigned char *data, size_t size);
-+ssize_t linux_file_read(struct file *file, loff_t offset, void *data, size_t size);
- 
--ssize_t linux_file_write(struct file *file, loff_t offset, unsigned char *data, size_t size);
-+ssize_t linux_file_write(struct file *file, loff_t offset, const void *data, size_t size);
- 
- #endif /* __LINUX_FILE_H__ */
-