diff --git a/src/core/primitive_parser.rs b/src/core/primitive_parser.rs
index ec954ca..9d62f7e 100644
--- a/src/core/primitive_parser.rs
+++ b/src/core/primitive_parser.rs
@@ -32,7 +32,7 @@ impl PrimitiveText {
 
     pub fn get_comment(&self, name: &str, text: &str) -> String {
         if let Some(comment) = PrimitiveText::extract_pattern_comments(text).get(name) {
-            (*comment).clone()
+            "// ".to_string() + comment
         } else {
             "".to_string()
         }
diff --git a/src/hover/feature.rs b/src/hover/feature.rs
index 1e64a72..3637c2e 100644
--- a/src/hover/feature.rs
+++ b/src/hover/feature.rs
@@ -227,11 +227,25 @@ fn goto_instantiation<'a>(
                     // info!("param_range: {param_range:#?}");
                     // info!("position param find belong module: {:?}", module);
 
-                    for param in &module.params {
-                        if token_name == param.name {
-                            let file_type = server.srcs.hdl_param.find_file_type_by_module_name(&instance.inst_type);
-                            let hover = make_param_desc_hover(&file_type, param, range, language_id);
-                            return Some(hover);
+                    let file_type = server.srcs.hdl_param.find_file_type_by_module_name(&instance.inst_type);
+                    if file_type == "primitives" {
+                        let primitives_text = server.srcs.primitive_text.clone();
+                        let params_assignments = &module.instances.first().unwrap().intstparam_assignments;
+                        for assignment in params_assignments {
+                            if assignment.parameter.clone().unwrap() == token_name {
+                                let hover = make_primitives_param_desc_hover(
+                                    primitives_text, &instance.inst_type,
+                                    assignment, range, language_id
+                                );
+                                return Some(hover);
+                            }
+                        }
+                    } else {
+                        for param in &module.params {
+                            if token_name == param.name {
+                                let hover = make_param_desc_hover(&file_type, param, range, language_id);
+                                return Some(hover);
+                            }
                         }
                     }
                     return None;
@@ -252,8 +266,8 @@ fn goto_instantiation<'a>(
                     let file_type = server.srcs.hdl_param.find_file_type_by_module_name(&instance.inst_type);
                     if file_type == "primitives" {
                         let primitives_text = server.srcs.primitive_text.clone();
-                        let instance_assignments = &module.instances.first().unwrap().intstport_assignments;
-                        for assignment in instance_assignments {
+                        let port_assignments = &module.instances.first().unwrap().intstport_assignments;
+                        for assignment in port_assignments {
                             if assignment.port.clone().unwrap() == token_name {
                                 let hover = make_primitives_port_desc_hover(
                                     primitives_text, &instance.inst_type,
@@ -310,6 +324,30 @@ pub fn hover_position_port_param(
     None
 }
 
+fn make_primitives_param_desc_hover(
+    primitives_text: Arc<PrimitiveText>,
+    primitives_name: &str,
+    inst_param: &crate::core::hdlparam::InstParameter,
+    range: &Range, language_id: &str) -> Hover {
+
+    let name = inst_param.parameter.clone().unwrap();
+    let text_map = primitives_text.name_to_text.read().unwrap();
+    let comment = if let Some(text) = text_map.get(primitives_name) {
+        primitives_text.get_comment(&name, text)
+    } else {
+        "".to_string()
+    };
+
+    let language_string = LanguageString {
+        language: language_id.to_string(),
+        value: "parameter ".to_string() + &name + " " + &comment,
+    };
+    Hover {
+        contents: HoverContents::Scalar(MarkedString::LanguageString(language_string)),
+        range: Some(range.clone())
+    }
+}
+
 fn make_primitives_port_desc_hover(
     primitives_text: Arc<PrimitiveText>,
     primitives_name: &str,
@@ -326,7 +364,7 @@ fn make_primitives_port_desc_hover(
 
     let language_string = LanguageString {
         language: language_id.to_string(),
-        value: name + " // " + &comment,
+        value: "port ".to_string() + &name + " " + &comment,
     };
     Hover {
         contents: HoverContents::Scalar(MarkedString::LanguageString(language_string)),