diff --git a/cosmos_genesis_tinker.py b/cosmos_genesis_tinker.py
index 8f3b6dc..1cc7732 100755
--- a/cosmos_genesis_tinker.py
+++ b/cosmos_genesis_tinker.py
@@ -336,7 +336,9 @@ def create_preprocessing_file(self):
         self.log_step("Creating preprocessing file " +
                       self.preprocessing_file)
         self._preprocessing = True
-        shutil.copy2(self.input_file, self.preprocessing_file)
+        subprocess.run(f"jq '.' {self.input_file} > {self.preprocessing_file}",
+                check=True, shell=True)
+        # shutil.copy2(self.input_file, self.preprocessing_file)
 
     def replace_delegator(self, old_delegator: Delegator, new_delegator: Delegator):
         """