diff --git a/pkgs/development/libraries/poppler/default.nix b/pkgs/development/libraries/poppler/default.nix
index e5b469f7395..30f8044f32b 100644
--- a/pkgs/development/libraries/poppler/default.nix
+++ b/pkgs/development/libraries/poppler/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake ninja pkgconfig ];
 
   # Not sure when and how to pass it.  It seems an upstream bug anyway.
-  CXXFLAGS = stdenv.lib.optionalString stdenv.cc.isClang "-std=c++11";
+  CXXFLAGS = stdenv.lib.optionalString stdenv.cc.isClang "-std=c++14";
 
   cmakeFlags = [
     (mkFlag true "XPDF_HEADERS")