diff --git a/pkgs/development/tools/database/cdb/default.nix b/pkgs/development/tools/database/cdb/default.nix
index 3da8c8855bc35..50dfb0a89b2c4 100644
--- a/pkgs/development/tools/database/cdb/default.nix
+++ b/pkgs/development/tools/database/cdb/default.nix
@@ -36,6 +36,11 @@ stdenv.mkDerivation {
     "out"
   ];
 
+  env.NIX_CFLAGS_COMPILE = toString [
+      "-Wno-error=implicit-int"
+      "-Wno-error=implicit-function-declaration"
+  ];
+
   postPatch = ''
     # A little patch, borrowed from Archlinux AUR, borrowed from Gentoo Portage
     sed -e 's/^extern int errno;$/#include <errno.h>/' -i error.h