diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 7372e564f..04cdb3567 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -3536,7 +3536,7 @@ bool Tokenizer::simplifyTokenList1(const char FileName[])
     // Remove __asm..
     simplifyAsm();
 
-    // Add parantheses to ternary operator where necessary
+    // Add parentheses to ternary operator where necessary
     prepareTernaryOpForAST();
 
     // Change initialisation of variable to assignment
@@ -10229,10 +10229,10 @@ void Tokenizer::prepareTernaryOpForAST()
 {
     // http://en.cppreference.com/w/cpp/language/operator_precedence says about ternary operator:
     //       "The expression in the middle of the conditional operator (between ? and :) is parsed as if parenthesized: its precedence relative to ?: is ignored."
-    // The AST parser relies on this function to add such parantheses where necessary.
+    // The AST parser relies on this function to add such parentheses where necessary.
     for (Token* tok = list.front(); tok; tok = tok->next()) {
         if (tok->str() == "?") {
-            bool paranthesesNeeded = false;
+            bool parenthesesNeeded = false;
             unsigned int depth = 0;
             Token* tok2 = tok->next();
             for (; tok2; tok2 = tok2->next()) {
@@ -10245,13 +10245,13 @@ void Tokenizer::prepareTernaryOpForAST()
                 } else if (tok2->str() == ";" || (tok2->link() && tok2->str() != "{" && tok2->str() != "}"))
                     break;
                 else if (tok2->str() == ",")
-                    paranthesesNeeded = true;
+                    parenthesesNeeded = true;
                 else if (tok2->str() == "?") {
                     depth++;
-                    paranthesesNeeded = true;
+                    parenthesesNeeded = true;
                 }
             }
-            if (paranthesesNeeded && tok2 && tok2->str() == ":") {
+            if (parenthesesNeeded && tok2 && tok2->str() == ":") {
                 tok->insertToken("(");
                 tok2->insertToken(")", emptyString, true);
                 Token::createMutualLinks(tok->next(), tok2->previous());
diff --git a/lib/tokenize.h b/lib/tokenize.h
index b374578f5..02f8af5e1 100644
--- a/lib/tokenize.h
+++ b/lib/tokenize.h
@@ -695,7 +695,7 @@ private:
     bool simplifyStrlen();
 
     /**
-    * Prepare ternary operators with parantheses so that the AST can be created
+    * Prepare ternary operators with parentheses so that the AST can be created
     * */
     void prepareTernaryOpForAST();
 
diff --git a/lib/tokenlist.cpp b/lib/tokenlist.cpp
index 2fdb72d9d..bb9ce5204 100644
--- a/lib/tokenlist.cpp
+++ b/lib/tokenlist.cpp
@@ -908,7 +908,7 @@ static void compileAssignTernary(Token *&tok, AST_state& state)
         } else if (tok->str() == "?") {
             // http://en.cppreference.com/w/cpp/language/operator_precedence says about ternary operator:
             //       "The expression in the middle of the conditional operator (between ? and :) is parsed as if parenthesized: its precedence relative to ?: is ignored."
-            // Hence, we rely on Tokenizer::prepareTernaryOpForAST() to add such parantheses where necessary.
+            // Hence, we rely on Tokenizer::prepareTernaryOpForAST() to add such parentheses where necessary.
             if (tok->strAt(1) == ":") {
                 state.op.push(0);
             }