diff --git a/src/lib.rs b/src/lib.rs
index 35359521..ca841346 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -42,7 +42,8 @@ mod aggregate {
                 match entry {
                     Ok(entry) => {
                         num_bytes += match entry.metadata {
-                            Some(Ok(m)) => m.len(),
+                            Some(Ok(ref m)) if !m.is_dir() => m.len(),
+                            Some(Ok(_)) => 0,
                             Some(Err(_)) => {
                                 res.num_errors += 1;
                                 0
diff --git a/tests/snapshots/success-no-arguments b/tests/snapshots/success-no-arguments
index d47bfb49..884864b9 100644
--- a/tests/snapshots/success-no-arguments
+++ b/tests/snapshots/success-no-arguments
@@ -1 +1 @@
-1259683	.
\ No newline at end of file
+1258947	.
\ No newline at end of file