diff --git a/compiler_test.go b/compiler_test.go
index edd60da..3009ed1 100644
--- a/compiler_test.go
+++ b/compiler_test.go
@@ -458,6 +458,13 @@ println(dumpAST(code));
 `
 	NewCompiler().Compiler(script)
 }
+func TestInit(t *testing.T) {
+	script := `
+int a;
+println(a);
+`
+	NewCompiler().Compiler(script)
+}
 
 func TestNativeReturn(t *testing.T) {
 	s := testReturn()
diff --git a/resolver/ref_resolver.go b/resolver/ref_resolver.go
index fb8afab..63e7eea 100644
--- a/resolver/ref_resolver.go
+++ b/resolver/ref_resolver.go
@@ -121,6 +121,9 @@ func (s *RefResolver) ExitBlockStms(ctx *parser.BlockStmsContext) {
 					if !ok {
 						continue
 					}
+					if variableDeclaratorContext.VariableInitializer() == nil {
+						continue
+					}
 					initializerContext := variableDeclaratorContext.VariableInitializer().(*parser.VariableInitializerContext)
 					exprContext, ok := initializerContext.Expr().(*parser.ExprContext)
 					if !ok {