diff --git a/pkgs/tools/filesystems/squashfs/default.nix b/pkgs/tools/filesystems/squashfs/default.nix
index 5e1700af0178..a016627b7a47 100644
--- a/pkgs/tools/filesystems/squashfs/default.nix
+++ b/pkgs/tools/filesystems/squashfs/default.nix
@@ -12,6 +12,8 @@ stdenv.mkDerivation rec {
   buildInputs = [ zlib xz ];
 
   preBuild = "cd squashfs-tools";
+  
+  NIX_LDFLAGS = "-lgcc_s"; # for pthread_cancel
 
   installFlags = "INSTALL_DIR=\${out}/bin";