diff --git a/pkgs/development/compilers/coreclr/default.nix b/pkgs/development/compilers/coreclr/default.nix
index 592eaf38d87a..17d91f36875c 100644
--- a/pkgs/development/compilers/coreclr/default.nix
+++ b/pkgs/development/compilers/coreclr/default.nix
@@ -1,5 +1,6 @@
 { stdenv
 , fetchFromGitHub
+, fetchpatch
 , which
 , cmake
 , clang
@@ -27,6 +28,14 @@ stdenv.mkDerivation rec {
     sha256 = "16z58ix8kmk8csfy5qsqz8z30czhrap2vb8s8vdflmbcfnq31jcw";
   };
 
+  patches = [
+    (fetchpatch {
+      # glibc 2.26
+      url = https://github.com/dotnet/coreclr/commit/a8f83b615708c529b112898e7d2fbc3f618b26ee.patch;
+      sha256 = "047ph5gip4z2h7liwdxsmpnlaq0sd3hliaw4nyqjp647m80g3ffq";
+    })
+  ];
+
   buildInputs = [
     which
     cmake