diff --git a/src/ExprNode.cc b/src/ExprNode.cc
index 218f0793cab4b8256e6b4b36cee43485eedd9391..4c96ed493c2d381df40c55fcc5585a4c5d8ff181 100644
--- a/src/ExprNode.cc
+++ b/src/ExprNode.cc
@@ -4164,7 +4164,7 @@ BinaryOpNode::cost(int cost, bool is_matlab) const
       case BinaryOpcode::power:
         return cost + 520;
       case BinaryOpcode::powerDeriv:
-        return cost + (min_cost_c/2+1);;
+        return cost + (min_cost_c/2+1);
       case BinaryOpcode::equal:
         return cost;
       }
@@ -4193,7 +4193,7 @@ BinaryOpNode::computeTemporaryTerms(const pair<int, int> &derivOrder,
       /* If the node has already been encountered, increment its ref count
          and declare it as a temporary term if it is too costly (except if it is
          an equal node: we don't want them as temporary terms) */
-      reference_count[this2] = { it->second.first + 1, it->second.second };;
+      reference_count[this2] = { it->second.first + 1, it->second.second };
       if (reference_count[this2].first * cost(temp_terms_map, is_matlab) > min_cost(is_matlab)
           && op_code != BinaryOpcode::equal)
         temp_terms_map[reference_count[this2].second].insert(this2);
diff --git a/src/ParsingDriver.hh b/src/ParsingDriver.hh
index 2eb6d73ea8c215da7f57517ba3173c05ea003376..7c8fec8526c3963af0eb8a78e31401e225bb1bd3 100644
--- a/src/ParsingDriver.hh
+++ b/src/ParsingDriver.hh
@@ -465,13 +465,13 @@ public:
   void end_mshocks(bool overwrite);
   //! Adds a deterministic shock or a path element inside a conditional_forecast_paths block
   void add_det_shock(const string &var, bool conditional_forecast);
-  //! Adds a std error chock
+  //! Adds a std error shock
   void add_stderr_shock(const string &var, expr_t value);
-  //! Adds a variance chock
+  //! Adds a variance shock
   void add_var_shock(const string &var, expr_t value);
-  //! Adds a covariance chock
+  //! Adds a covariance shock
   void add_covar_shock(const string &var1, const string &var2, expr_t value);
-  //! Adds a correlated chock
+  //! Adds a correlated shock
   void add_correl_shock(const string &var1, const string &var2, expr_t value);
   //! Adds a shock period range
   void add_period(const string &p1, const string &p2);