diff --git a/DDParsers/include/Evaluator/Evaluator.h b/DDParsers/include/Evaluator/Evaluator.h
index c8a331fa8..80f41c8b6 100644
--- a/DDParsers/include/Evaluator/Evaluator.h
+++ b/DDParsers/include/Evaluator/Evaluator.h
@@ -57,7 +57,7 @@ namespace dd4hep  {
         WARNING_EXISTING_FUNCTION,  /**< Redefinition of existing function */
         WARNING_BLANK_STRING,       /**< Empty input string */
         ERROR_NOT_A_NAME,           /**< Not allowed sysmbol in the name of variable or function */
-        ERROR_SYNTAX_ERROR,         /**< Systax error */
+        ERROR_SYNTAX_ERROR,         /**< Syntax error */
         ERROR_UNPAIRED_PARENTHESIS, /**< Unpaired parenthesis */
         ERROR_UNEXPECTED_SYMBOL,    /**< Unexpected sysbol */
         ERROR_UNKNOWN_VARIABLE,     /**< Non-existing variable */
diff --git a/DDParsers/src/Evaluator/Evaluator.cpp b/DDParsers/src/Evaluator/Evaluator.cpp
index 5beb6626c..070b2fe0c 100644
--- a/DDParsers/src/Evaluator/Evaluator.cpp
+++ b/DDParsers/src/Evaluator/Evaluator.cpp
@@ -545,7 +545,7 @@ static int engine(char const* begin, char const* end, double & result,
     iWhat = SyntaxTable[iPrev][iCur];
     iPrev = iCur;
     switch (iWhat) {
-    case 0:                             // systax error
+    case 0:                             // syntax error
       EVAL_EXIT( EVAL::ERROR_SYNTAX_ERROR, pointer );
     case 1:                             // operand: number, variable, function
       EVAL_STATUS = operand(pointer, end, value, pointer, dictionary);