diff --git a/src/cli/run.rs b/src/cli/run.rs
index 315b917b5..b020cb60e 100644
--- a/src/cli/run.rs
+++ b/src/cli/run.rs
@@ -59,7 +59,7 @@ pub async fn execute(args: Args) -> miette::Result<()> {
     let environment = project.environment_from_name_or_env_var(args.environment.clone())?;
 
     // Find the environment to run the task in, if any were specified.
-    let explicit_environment = if environment.is_default() {
+    let explicit_environment = if args.environment.is_none() {
         None
     } else {
         Some(environment.clone())