diff --git a/Formula/s/solidity.rb b/Formula/s/solidity.rb
index f41a43e9aede0b..6431567c8333f3 100644
--- a/Formula/s/solidity.rb
+++ b/Formula/s/solidity.rb
@@ -28,7 +28,7 @@ class Solidity < Formula
 
   def install
     mkdir "build" do
-      system "cmake", "..", *std_cmake_args
+      system "cmake", "..", *std_cmake_args, "-DHOMEBREW_ALLOW_FETCHCONTENT=ON"
       system "make", "install"
     end
   end