diff --git a/pkgs/development/libraries/icu/base.nix b/pkgs/development/libraries/icu/base.nix
index 78e0c5740446..b12e76a90a99 100644
--- a/pkgs/development/libraries/icu/base.nix
+++ b/pkgs/development/libraries/icu/base.nix
@@ -25,6 +25,9 @@ stdenv.mkDerivation {
     echo Source root reset to ''${sourceRoot}
   '';
 
+  # https://sourceware.org/glibc/wiki/Release/2.26#Removal_of_.27xlocale.h.27
+  postPatch = "substituteInPlace i18n/digitlst.cpp --replace '<xlocale.h>' '<locale.h>'";
+
   inherit patchFlags patches;
 
   preConfigure = ''