diff --git a/src/protocol/parser/pass_definitions.rs b/src/protocol/parser/pass_definitions.rs
index 7f9817270909d65c1cfc3c9fa702aef204e1506e..17b71cecd9f6981c66bf39a4775d6a55a9f83c6d 100644
--- a/src/protocol/parser/pass_definitions.rs
+++ b/src/protocol/parser/pass_definitions.rs
@@ -376,6 +376,7 @@ impl PassDefinitions {
                 ("std.global", "length") => ProcedureSource::FuncLength,
                 ("std.global", "assert") => ProcedureSource::FuncAssert,
                 ("std.global", "print") => ProcedureSource::FuncPrint,
+                ("std.random", "random_u32") => ProcedureSource::CompRandomU32,
                 _ => panic!(
                     "compiler error: unknown builtin procedure '{}' in module '{}'",
                     procedure_name, module_name
@@ -825,10 +826,8 @@ impl PassDefinitions {
         if let Expression::Call(expression) = expression {
             // Allow both components and functions, as it makes more sense to
             // check their correct use in the validation and linking pass
-            if expression.method == Method::UserComponent || expression.method == Method::UserFunction {
-                call_id = expression.this;
-                valid = true;
-            }
+            call_id = expression.this;
+            valid = true;
         }
 
         if !valid {
@@ -1658,7 +1657,8 @@ impl PassDefinitions {
                                     ProcedureSource::FuncLength => Method::Length,
                                     ProcedureSource::FuncAssert => Method::Assert,
                                     ProcedureSource::FuncPrint => Method::Print,
-                                    _ => todo!("other proc sources")
+                                    ProcedureSource::CompRandomU32 => Method::ComponentRandomU32,
+                                    _ => todo!("other procedure sources"),
                                 };
 
                                 // Function call: consume the arguments