diff --git a/pkgs/tools/filesystems/sasquatch/default.nix b/pkgs/tools/filesystems/sasquatch/default.nix
index 017fda14cc65..ba5fd9ccfc1b 100644
--- a/pkgs/tools/filesystems/sasquatch/default.nix
+++ b/pkgs/tools/filesystems/sasquatch/default.nix
@@ -49,6 +49,12 @@ stdenv.mkDerivation rec {
     cd squashfs-tools
   '';
 
+  # Workaround build failure on -fno-common toolchains like upstream
+  # gcc-10. Otherwise build fails as:
+  #   ld: unsquashfs_xattr.o:/build/squashfs4.4/squashfs-tools/error.h:34: multiple definition of
+  #     `verbose'; unsquashfs.o:/build/squashfs4.4/squashfs-tools/error.h:34: first defined here
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
   installFlags = [ "INSTALL_DIR=\${out}/bin" ];
 
   makeFlags = [