diff --git a/src/parser/filter_parser.rs b/src/parser/filter_parser.rs
index 9061011..11a949f 100644
--- a/src/parser/filter_parser.rs
+++ b/src/parser/filter_parser.rs
@@ -15,30 +15,30 @@ pub struct Filter {
 
 pub fn parse_filter_string(input: &str) -> Result<Vec<Filter>, Box<dyn std::error::Error>> {
     let mut filters = Vec::new();
-    let pairs = FilterParser::parse(FilterParser::Rule::filters, input)?;
+    let pairs = FilterParser::parse(<FilterParser as pest::Parser>::Rule::filters, input)?;
     
     for pair in pairs {
-        if pair.as_rule() == FilterParser::Rule::filter {
+        if pair.as_rule() == <FilterParser as pest::Parser>::Rule::filter {
             let mut name = String::new();
             let mut options = HashMap::new();
             
             for inner_pair in pair.into_inner() {
                 match inner_pair.as_rule() {
-                    FilterParser::Rule::filter_name => {
+                    <FilterParser as pest::Parser>::Rule::filter_name => {
                         name = inner_pair.as_str().to_string();
                     }
-                    FilterParser::Rule::options => {
+                    <FilterParser as pest::Parser>::Rule::options => {
                         for option_pair in inner_pair.into_inner() {
-                            if option_pair.as_rule() == FilterParser::Rule::option {
+                            if option_pair.as_rule() == <FilterParser as pest::Parser>::Rule::option {
                                 let mut option_name = None;
                                 let mut option_value = None;
                                 
                                 for option_inner in option_pair.into_inner() {
                                     match option_inner.as_rule() {
-                                        FilterParser::Rule::option_name => {
+                                        <FilterParser as pest::Parser>::Rule::option_name => {
                                             option_name = Some(option_inner.as_str().to_string());
                                         }
-                                        FilterParser::Rule::option_value => {
+                                        <FilterParser as pest::Parser>::Rule::option_value => {
                                             option_value = Some(parse_option_value(option_inner.as_str())?);
                                         }
                                         _ => {}