diff --git a/preprocessor/ParsingDriver.hh b/preprocessor/ParsingDriver.hh
index f6f04f8a06d0465944fd6e7d462930d729aa1da7..80eb4c0a2ac116c86c4682158699af3ba0b47eb1 100644
--- a/preprocessor/ParsingDriver.hh
+++ b/preprocessor/ParsingDriver.hh
@@ -365,7 +365,7 @@ public:
   void end_shocks(bool overwrite);
   //! Writes a mshocks statement
   void end_mshocks(bool overwrite);
-  //! Adds a deterministic chock or a path element inside a conditional_forecast_paths block
+  //! Adds a deterministic shock or a path element inside a conditional_forecast_paths block
   void add_det_shock(string *var, bool conditional_forecast);
   //! Adds a std error chock
   void add_stderr_shock(string *var, expr_t value);