diff --git a/program-runtime/src/loaded_programs.rs b/program-runtime/src/loaded_programs.rs
index 869462a5e3b699..4677cbf04d79ac 100644
--- a/program-runtime/src/loaded_programs.rs
+++ b/program-runtime/src/loaded_programs.rs
@@ -581,13 +581,8 @@ impl LoadedPrograms {
     }
 
     pub fn unload_all_programs(&mut self) {
-        let keys = self
-            .entries
-            .keys()
-            .into_iter()
-            .map(|key| *key)
-            .collect::<Vec<Pubkey>>();
-        keys.iter().for_each(|key| self.unload_program(key));
+        let keys = self.entries.keys().copied().collect::<Vec<Pubkey>>();
+        keys.iter().for_each(|key| self.unload_program(&key));
     }
 
     fn unload_program_entries<'a>(