diff --git a/types/index.d.ts b/types/index.d.ts
index 13c3432f..8fbbe95f 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -198,7 +198,32 @@ type Return<T, K extends readonly any[]> =
   postgres.Helper<T, K>
 
 declare namespace postgres {
+  type PostgresErrorDetails = {
+    message: string;
+    severity_local: string;
+    severity: string;
+    code: string;
+    position?: string;
+    file: string;
+    line: string;
+    routine: string;
+    detail?: string | undefined;
+    hint?: string | undefined;
+    internal_position?: string | undefined;
+    internal_query?: string | undefined;
+    where?: string | undefined;
+    schema_name?: string | undefined;
+    table_name?: string | undefined;
+    column_name?: string | undefined;
+    data?: string | undefined;
+    type_name?: string | undefined;
+    constraint_name?: string | undefined;
+    query?: string | undefined;
+    parameters?: any[] | undefined;
+  };
+  
   class PostgresError extends Error {
+    constructor(details: PostgresErrorDetails);
     name: 'PostgresError';
     severity_local: string;
     severity: string;