diff --git a/src/protocol/parser/mod.rs b/src/protocol/parser/mod.rs
index 6d2a3281c144df2d3547c8bf2622498bdb2dd6a0..f79a81c83522d13a3b39043637b73fc234a79a45 100644
--- a/src/protocol/parser/mod.rs
+++ b/src/protocol/parser/mod.rs
@@ -296,8 +296,9 @@ impl Parser {
         use std::path::{Path, PathBuf};
         use std::fs;
 
-        const FILES: [&'static str; 1] = [
+        const FILES: [&'static str; 2] = [
             "std.global.pdl",
+            "std.random.pdl",
         ];
 
         // Determine base directory
@@ -324,6 +325,7 @@ impl Parser {
         let mut first_file = true;
 
         for file in FILES {
+            file_path.clear();
             file_path.push(path);
             file_path.push(file);