diff --git a/src/uu/expand/src/expand.rs b/src/uu/expand/src/expand.rs
index d0b13f6cf..74a549687 100644
--- a/src/uu/expand/src/expand.rs
+++ b/src/uu/expand/src/expand.rs
@@ -244,6 +244,7 @@ fn expand(options: Options) {
                     }
                 }
 
+                safe_unwrap!(output.flush());
                 byte += nbytes; // advance the pointer
             }