diff --git a/sim-cli/src/main.rs b/sim-cli/src/main.rs
index c706710e..8c777180 100644
--- a/sim-cli/src/main.rs
+++ b/sim-cli/src/main.rs
@@ -16,19 +16,35 @@ struct Cli {
     config: PathBuf,
     #[clap(long, short)]
     total_time: Option<u32>,
+    #[clap(long, short)]
+    debug: bool,
 }
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
+    let cli = Cli::parse();
+
     SimpleLogger::new()
         .with_level(LevelFilter::Warn)
-        .with_module_level("sim_lib", LevelFilter::Info)
-        .with_module_level("sim_cli", LevelFilter::Debug)
+        .with_module_level(
+            "sim_lib",
+            if cli.debug {
+                LevelFilter::Debug
+            } else {
+                LevelFilter::Info
+            },
+        )
+        .with_module_level(
+            "sim_cli",
+            if cli.debug {
+                LevelFilter::Debug
+            } else {
+                LevelFilter::Info
+            },
+        )
         .init()
         .unwrap();
 
-    let cli = Cli::parse();
-
     let config_str = std::fs::read_to_string(cli.config)?;
     let Config { nodes, activity } = serde_json::from_str(&config_str)?;
 
diff --git a/sim-lib/src/lib.rs b/sim-lib/src/lib.rs
index 9b761072..805221c9 100644
--- a/sim-lib/src/lib.rs
+++ b/sim-lib/src/lib.rs
@@ -490,11 +490,8 @@ async fn consume_simulation_results(
 ) {
     log::debug!("Simulation results consumer started.");
 
-    match write_payment_results(receiver, listener).await {
-        Ok(_) => {
-            log::debug!("Simulation results ok but exiting!!!");
-        }
-        Err(e) => log::error!("Error while reporting payment results: {:?}", e),
+    if let Err(e) = write_payment_results(receiver, listener).await {
+        log::error!("Error while reporting payment results: {:?}", e);
     }
 
     log::debug!("Simulation results consumer exiting");
@@ -659,7 +656,10 @@ async fn track_outcome(
                         log::debug!("Could not send payment result for {:?}.", payment.hash);
                     }
                 }
-                Err(e) => log::error!("Track payment failed for {:?}: {e}", payment.hash),
+                Err(e) => log::error!(
+                    "Track payment failed for {}: {e}",
+                    hex::encode(payment.hash.0)
+                ),
             }
         }
     }