diff --git a/compilerAst/src/prog8/ast/AstToplevel.kt b/compilerAst/src/prog8/ast/AstToplevel.kt
index 94b95e7af..1713f4934 100644
--- a/compilerAst/src/prog8/ast/AstToplevel.kt
+++ b/compilerAst/src/prog8/ast/AstToplevel.kt
@@ -244,8 +244,8 @@ interface Node {
 
 
 open class Module(final override var statements: MutableList<Statement>,
-             final override val position: Position,
-             val source: SourceCode) : Node, INameScope {
+                  final override val position: Position,
+                  val source: SourceCode) : Node, INameScope {
 
     override lateinit var parent: Node
     lateinit var program: Program
diff --git a/compilerAst/src/prog8/ast/statements/AstStatements.kt b/compilerAst/src/prog8/ast/statements/AstStatements.kt
index 37382e134..5712d70b0 100644
--- a/compilerAst/src/prog8/ast/statements/AstStatements.kt
+++ b/compilerAst/src/prog8/ast/statements/AstStatements.kt
@@ -130,7 +130,7 @@ data class Label(override val name: String, override val position: Position) : S
     override fun toString()= "Label(name=$name, pos=$position)"
 }
 
-open class Return(var value: Expression?, final override val position: Position) : Statement() {
+class Return(var value: Expression?, final override val position: Position) : Statement() {
     override lateinit var parent: Node
 
     override fun linkParents(parent: Node) {
@@ -171,7 +171,7 @@ enum class ZeropageWish {
     NOT_IN_ZEROPAGE
 }
 
-open class VarDecl(val type: VarDeclType,
+class VarDecl(val type: VarDeclType,
                    private val declaredDatatype: DataType,
                    val zeropage: ZeropageWish,
                    var arraysize: ArrayIndex?,
@@ -299,7 +299,7 @@ class ArrayIndex(var indexExpr: Expression,
     override fun copy() = ArrayIndex(indexExpr.copy(), position)
 }
 
-open class Assignment(var target: AssignTarget, var value: Expression, final override val position: Position) : Statement() {
+class Assignment(var target: AssignTarget, var value: Expression, final override val position: Position) : Statement() {
     override lateinit var parent: Node
 
     override fun linkParents(parent: Node) {