diff --git a/glslang.spec b/glslang.spec
index 68d6499..9934ef7 100644
--- a/glslang.spec
+++ b/glslang.spec
@@ -27,7 +27,6 @@ Group:          Development/Libraries/C and C++
 Url:            https://www.khronos.org/opengles/sdk/tools/Reference-Compiler/
 
 Source:         %name-%version.tar.xz
-Patch1:         gccwarn.diff
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  bison
 BuildRequires:  cmake >= 2.8
@@ -57,7 +56,6 @@ compressor's dictionary can find better cross module commonality.
 
 %prep
 %setup -q
-%patch -P 1 -p1
 
 %build
 %cmake