diff --git a/pkgs/tools/networking/curl/default.nix b/pkgs/tools/networking/curl/default.nix
index b06c9b9ecd38..3d34aacb48b3 100644
--- a/pkgs/tools/networking/curl/default.nix
+++ b/pkgs/tools/networking/curl/default.nix
@@ -155,6 +155,8 @@ stdenv.mkDerivation (finalAttrs: {
       "--without-ca-path"
     ] ++ lib.optionals (!gnutlsSupport && !opensslSupport && !wolfsslSupport && !rustlsSupport) [
       "--without-ssl"
+    ] ++ lib.optionals (rustlsSupport && !stdenv.isDarwin) [
+      "--with-ca-bundle=/etc/ssl/certs/ca-certificates.crt"
     ] ++ lib.optionals (gnutlsSupport && !stdenv.isDarwin) [
       "--with-ca-path=/etc/ssl/certs"
     ];