diff --git a/pkgs/development/libraries/g2o/default.nix b/pkgs/development/libraries/g2o/default.nix
index 0607fba102f..1140565eefc 100644
--- a/pkgs/development/libraries/g2o/default.nix
+++ b/pkgs/development/libraries/g2o/default.nix
@@ -20,9 +20,6 @@ mkDerivation rec {
   nativeBuildInputs = [ cmake makeWrapper ];
   buildInputs = [ eigen suitesparse blas lapack libGLU qtbase libqglviewer ];
 
-  # Silence noisy warning
-  CXXFLAGS = "-Wno-deprecated-copy";
-
   dontWrapQtApps = true;
 
   cmakeFlags = [