diff --git a/src/main/antlr/Decaf.g4 b/src/main/antlr/Decaf.g4
index f1e9cf0..8ee8ad9 100644
--- a/src/main/antlr/Decaf.g4
+++ b/src/main/antlr/Decaf.g4
@@ -19,14 +19,14 @@ param : type id;
 block : '{' (localVar | stmt)* '}';
 
 stmt : 'if' '(' expr ')' block ('else' block)?  #If
-    | 'for' '(' expr ';' expr ';' expr ')' block  #For
+    | 'for' '(' assignement ';' expr ';' assignement ')' block  #For
     | 'while' '(' expr ')' block                #While
     | 'do' block 'while' '(' expr ')'           #DoWhile
     | 'return' expr ';'                         #Return
     | 'return' ';'                              #ReturnVoid
     | 'break' ';'                               #Break
     | 'continue' ';'                            #Continue
-    | id assignSign expr ';'                    #Assignment
+    | assignement ';'                    #Assignment
     | stmtexpr ';'                              #StatementExpressionstmt
     ;
 
@@ -48,6 +48,7 @@ unaryOp : SUB | NOT;
 
 fieldId : (THIS '.')? (recipient '.')* id;
 
+assignement : id assignSign expr ;
 methCall : (THIS '.')? (recipient '.')* methName;
 recipient : methName | id;
 methName : id '(' args? ')';
diff --git a/src/main/java/de/maishai/ast/records/For.java b/src/main/java/de/maishai/ast/records/For.java
index 1e51e77..0361306 100644
--- a/src/main/java/de/maishai/ast/records/For.java
+++ b/src/main/java/de/maishai/ast/records/For.java
@@ -1,5 +1,5 @@
 package de.maishai.ast.records;
 
 
-public record For(Expression assign, Expression cond, Expression inc, Block block) implements Statement {
+public record For(Assignment assign, Expression cond, Assignment inc, Block block) implements Statement {
 }