diff --git a/src/main/java/de/maishai/BlockGenerator.java b/src/main/java/de/maishai/BlockGenerator.java
index 6b762cc..075c1cf 100644
--- a/src/main/java/de/maishai/BlockGenerator.java
+++ b/src/main/java/de/maishai/BlockGenerator.java
@@ -14,7 +14,10 @@ public class BlockGenerator extends DecafBaseVisitor<Block> {
     public Block visitBlock(DecafParser.BlockContext ctx) {
         List<Statement> statements = new ArrayList<>(ctx.stmt().size());
         for (DecafParser.StmtContext stmtContext : ctx.stmt()) {
-            statements.addAll(new StatementGenerator().visit(stmtContext));
+            List<Statement> statementList = new StatementGenerator().visit(stmtContext);
+            if (statementList != null){
+                statements.addAll(statementList);
+            }
         }
         if (ctx.return_() != null){
             statements.add(ctx.return_().isEmpty() ? new Return(null) : new Return(new ExpressionGenerator().visit(ctx.return_())));
diff --git a/src/main/java/de/maishai/StatementGenerator.java b/src/main/java/de/maishai/StatementGenerator.java
index f3bf0de..f01cf0d 100644
--- a/src/main/java/de/maishai/StatementGenerator.java
+++ b/src/main/java/de/maishai/StatementGenerator.java
@@ -110,9 +110,11 @@ public class StatementGenerator extends DecafBaseVisitor<List<Statement>> {
             recursiveOwnerChain = ExpressionGenerator.generateRecursiveOwnerChain(recipientList, null);
         }
         List<Expression> args = new ArrayList<>();
-        for (var expr : ctx.methCall().methName().args().expr()) {
-            Expression astExpr = expr.accept(new ExpressionGenerator());
-            args.add(astExpr);
+        if (ctx.methCall().methName().args() != null) {
+            for (var expr : ctx.methCall().methName().args().expr()) {
+                Expression astExpr = expr.accept(new ExpressionGenerator());
+                args.add(astExpr);
+            }
         }
         return List.of(new MethodCall(new FieldVarAccess(isField, recursiveOwnerChain, ctx.methCall().methName().id().IDENTIFIER().getText()), args));
     }