diff --git a/CMakeLists.txt b/CMakeLists.txt
index beae58f..6d41fd4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -60,7 +60,8 @@ SET(SCULLY_SOURCE
 
     src/AST/ASTElement.cpp
     src/AST/ASTVisitor.cpp
-	src/AST/ConstantExpression.cpp
+        src/AST/AssignmentExpression.cpp
+        src/AST/ConstantExpression.cpp
 	src/AST/Expression.cpp
 	src/AST/ParameterList.cpp
 	src/AST/Statement.cpp
diff --git a/inc/AST/ASTVisitor.h b/inc/AST/ASTVisitor.h
index 00c27b2..efacfd0 100644
--- a/inc/AST/ASTVisitor.h
+++ b/inc/AST/ASTVisitor.h
@@ -1,6 +1,7 @@
 #ifndef ASTVISITOR_H
 #define ASTVISITOR_H
 
+#include "AssignmentExpression.h"
 #include "ConstantExpression.h"
 #include "VariableDefinition.h"
 #include "ParameterList.h"
@@ -10,7 +11,8 @@ public:
 	ASTVisitor();
 	virtual ~ASTVisitor();
 
-	virtual void visit(ConstantExpression* e) = 0;
+    virtual void visit(AssignmentExpression* e) = 0;
+    virtual void visit(ConstantExpression* e) = 0;
 	virtual void visit(ParameterList* e) = 0;
 	virtual void visit(VariableDefinition* e) = 0;
 };
diff --git a/inc/AST/AssignmentExpression.h b/inc/AST/AssignmentExpression.h
new file mode 100644
index 0000000..a910824
--- /dev/null
+++ b/inc/AST/AssignmentExpression.h
@@ -0,0 +1,22 @@
+#ifndef ASSIGNMENTEXPRESSION_H
+#define ASSIGNMENTEXPRESSION_H
+
+#include "AST/Expression.h"
+#include <string>
+
+class AssignmentExpression : public Expression
+{
+public:
+    AssignmentExpression(std::string id, Expression* expr);
+    virtual ~AssignmentExpression();
+
+    virtual void accept(ASTVisitor *visitor);
+
+    std::string getId();
+    Expression* getExpr();
+private:
+        std::string id_;
+        Expression* expr_;
+};
+
+#endif // ASSIGNMENTEXPRESSION_H
diff --git a/src/AST/AssignmentExpression.cpp b/src/AST/AssignmentExpression.cpp
new file mode 100644
index 0000000..4f5f2b8
--- /dev/null
+++ b/src/AST/AssignmentExpression.cpp
@@ -0,0 +1,22 @@
+#include "AST/AssignmentExpression.h"
+#include "AST/ASTVisitor.h"
+
+AssignmentExpression::AssignmentExpression(std::string id, Expression *expr)
+{
+    //
+}
+
+AssignmentExpression::~AssignmentExpression() {
+}
+
+void AssignmentExpression::accept(ASTVisitor *visitor) {
+    visitor->visit(this);
+}
+
+std::string AssignmentExpression::getId() {
+    return id_;
+}
+
+Expression* AssignmentExpression::getExpr() {
+    return expr_;
+}