diff --git a/pkgs/os-specific/linux/libcap/default.nix b/pkgs/os-specific/linux/libcap/default.nix
index 9b23625102ae..3fb3003d77aa 100644
--- a/pkgs/os-specific/linux/libcap/default.nix
+++ b/pkgs/os-specific/linux/libcap/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
     "BUILD_CC=$(CC_FOR_BUILD)"
     "CC:=$(CC)"
     "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
-  ] ++ lib.optional isStatic "SHARED=no";
+  ] ++ lib.optionals isStatic [ "SHARED=no" "LIBCSTATIC=yes" ];
 
   postPatch = ''
     patchShebangs ./progs/mkcapshdoc.sh