diff --git a/compos/src/compsvc.rs b/compos/src/compsvc.rs
index 08f3521..2a5534c 100644
--- a/compos/src/compsvc.rs
+++ b/compos/src/compsvc.rs
@@ -22,6 +22,7 @@
 use binder_common::new_binder_exception;
 use log::warn;
 use std::default::Default;
+use std::env;
 use std::path::PathBuf;
 use std::sync::{Arc, RwLock};
 
@@ -85,6 +86,17 @@
         }
     }
 
+    fn initializeClasspaths(
+        &self,
+        boot_classpath: &str,
+        dex2oat_boot_classpath: &str,
+    ) -> BinderResult<()> {
+        // TODO(198211396): Implement correctly.
+        env::set_var("BOOTCLASSPATH", boot_classpath);
+        env::set_var("DEX2OATBOOTCLASSPATH", dex2oat_boot_classpath);
+        Ok(())
+    }
+
     fn compile_cmd(
         &self,
         args: &[String],