diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index 631cd50dd68a..13157601e6f6 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation (rec {
 
   # As zlib takes part in the stdenv building, we don't want references
   # to the bootstrap-tools libgcc (as uses to happen on arm/mips)
-  NIX_LDFLAGS = "-static-libgcc";
+  NIX_CFLAGS_COMPILE = "-static-libgcc";
 
   crossAttrs = {
     dontStrip = if static then true else false;
diff --git a/pkgs/development/tools/misc/binutils/default.nix b/pkgs/development/tools/misc/binutils/default.nix
index 59082aa2f27e..2eb9d43bcbec 100644
--- a/pkgs/development/tools/misc/binutils/default.nix
+++ b/pkgs/development/tools/misc/binutils/default.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation rec {
 
   # As binutils takes part in the stdenv building, we don't want references
   # to the bootstrap-tools libgcc (as uses to happen on arm/mips)
-  NIX_LDFLAGS = "-static-libgcc";
+  NIX_CFLAGS_COMPILE = "-static-libgcc";
 
   configureFlags = "--disable-werror" # needed for dietlibc build
       + stdenv.lib.optionalString (stdenv.system == "mips64-linux")