diff --git a/src/stdlib.rs b/src/stdlib.rs
index fc07905..6a1e8a7 100644
--- a/src/stdlib.rs
+++ b/src/stdlib.rs
@@ -10,6 +10,7 @@ pub const MESSAGING: &str = include_str!("../messaging.spl");
 pub const ASSEMBLE: &str = include_str!("../assemble.spl");
 pub const ISBPL: &str = include_str!("../isbpl.spl");
 pub const REPL: &str = include_str!("../repl.spl");
+pub const PURE: &str = include_str!("../pure.spl");
 
 pub fn register(runtime: &mut Runtime) {
     multicall! {
@@ -23,5 +24,6 @@ pub fn register(runtime: &mut Runtime) {
         insert("assemble.spl", ASSEMBLE);
         insert("isbpl.spl", ISBPL);
         insert("repl.spl", REPL);
+        insert("pure.spl", PURE);
     }
 }