diff --git a/pkgs/by-name/lr/lrzsz/package.nix b/pkgs/by-name/lr/lrzsz/package.nix
index fe1350ad1a5e..4b65642e2534 100644
--- a/pkgs/by-name/lr/lrzsz/package.nix
+++ b/pkgs/by-name/lr/lrzsz/package.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   configureFlags = [ "--program-transform-name=s/^l//" ];
 
-  env.NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration -Wno-error=implicit-int -Wno-error=incompatible-pointer-types";
+  env.NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration -Wno-error=implicit-int -Wno-error=incompatible-pointer-types -std=gnu17";
 
   meta = {
     homepage = "https://ohse.de/uwe/software/lrzsz.html";