diff --git a/pkgs/tools/system/ddrutility/default.nix b/pkgs/tools/system/ddrutility/default.nix
index 02c89b22989..ce5e16e4eb4 100644
--- a/pkgs/tools/system/ddrutility/default.nix
+++ b/pkgs/tools/system/ddrutility/default.nix
@@ -13,6 +13,11 @@ stdenv.mkDerivation rec {
     substituteInPlace makefile --replace /usr/local ""
   '';
 
+  # Workaround build failure on -fno-common toolchains like upstream
+  # gcc-10. Otherwise build fails as:
+  #   ld: /build/ccltHly5.o:(.bss+0x119f8): multiple definition of `start_time'; /build/cc9evx3L.o:(.bss+0x10978): first defined here
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
   makeFlags = [ "DESTDIR=$(out)" ];
 
   meta = with lib; {