diff --git a/pkgs/os-specific/bsd/netbsd/default.nix b/pkgs/os-specific/bsd/netbsd/default.nix
index 25ac9ce451cc..ae93d42b6765 100644
--- a/pkgs/os-specific/bsd/netbsd/default.nix
+++ b/pkgs/os-specific/bsd/netbsd/default.nix
@@ -907,7 +907,7 @@ in lib.makeScopeWithSplicing
       byacc genassym gencat lorder tsort statHook rsync rpcgen
     ];
     buildInputs = with self; [ headers csu ];
-    NIX_CFLAGS_COMPILE = "-B${self.csu}/lib";
+    NIX_CFLAGS_COMPILE = "-B${self.csu}/lib -fcommon";
     meta.platforms = lib.platforms.netbsd;
     SHLIBINSTALLDIR = "$(out)/lib";
     MKPICINSTALL = "yes";