diff --git a/pkgs/tools/filesystems/udftools/default.nix b/pkgs/tools/filesystems/udftools/default.nix
index 75e37f77949d..b912bab68260 100644
--- a/pkgs/tools/filesystems/udftools/default.nix
+++ b/pkgs/tools/filesystems/udftools/default.nix
@@ -10,8 +10,6 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ ncurses readline ];
 
-  patches = [ ./gcc5.patch ];
-
   hardeningDisable = [ "fortify" ];
 
   NIX_CFLAGS_COMPILE = "-std=gnu90";
diff --git a/pkgs/tools/filesystems/udftools/gcc5.patch b/pkgs/tools/filesystems/udftools/gcc5.patch
deleted file mode 100644
index 2c57ff20e135..000000000000
--- a/pkgs/tools/filesystems/udftools/gcc5.patch
+++ /dev/null
@@ -1,17 +0,0 @@
---- udftools-1.0.0b3/libudffs/desc.c	2016-02-07 23:21:38.595391610 +0000
-+++ udftools-1.0.0b3/libudffs/desc.c	2016-02-07 23:21:57.759756269 +0000
-@@ -34,12 +34,12 @@
- #include "libudffs.h"
- #include "config.h"
- 
--inline struct impUseVolDescImpUse *query_iuvdiu(struct udf_disc *disc)
-+extern struct impUseVolDescImpUse *query_iuvdiu(struct udf_disc *disc)
- {
- 	return (struct impUseVolDescImpUse *)disc->udf_iuvd[0]->impUse;
- }
- 
--inline struct logicalVolIntegrityDescImpUse *query_lvidiu(struct udf_disc *disc)
-+extern struct logicalVolIntegrityDescImpUse *query_lvidiu(struct udf_disc *disc)
- {
- 	return (struct logicalVolIntegrityDescImpUse *)&(disc->udf_lvid->impUse[le32_to_cpu(disc->udf_lvd[0]->numPartitionMaps) * 2 * sizeof(uint32_t)]);
- }