diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index 68089aef11..bb1db2ef18 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -2751,7 +2751,7 @@ fn field_props(field: &str, ty: &str, doc: &[&str], default: &str) -> serde_json
         "FxHashMap<String, String>" => set! {
             "type": "object",
         },
-        "FxHashMap<Box<str>, usize>" => set! {
+        "FxHashMap<Box<str>, u16>" => set! {
             "type": "object",
         },
         "FxHashMap<String, Option<String>>" => set! {
@@ -2761,6 +2761,11 @@ fn field_props(field: &str, ty: &str, doc: &[&str], default: &str) -> serde_json
             "type": ["null", "integer"],
             "minimum": 0,
         },
+        "Option<u16>" => set! {
+            "type": ["null", "integer"],
+            "minimum": 0,
+            "maximum": 65535,
+        },
         "Option<String>" => set! {
             "type": ["null", "string"],
         },
diff --git a/editors/code/package.json b/editors/code/package.json
index 0bc6da9dc7..899d3c1495 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -2252,7 +2252,8 @@
                             "null",
                             "integer"
                         ],
-                        "minimum": 0
+                        "minimum": 0,
+                        "maximum": 65535
                     }
                 }
             },