diff --git a/src/uu/hashsum/src/hashsum.rs b/src/uu/hashsum/src/hashsum.rs
index 5c706a31dca..a6c544d2f77 100644
--- a/src/uu/hashsum/src/hashsum.rs
+++ b/src/uu/hashsum/src/hashsum.rs
@@ -334,7 +334,7 @@ fn create_algo_from_flags(matches: &ArgMatches) -> (&'static str, Box<dyn Digest
         }
     }
 
-    let alg = alg.unwrap_or_else(|| crash!(1, "You must specify hash algorithm!"));
+    let alg = alg.unwrap_or_else(|| crash!(1, "You must specify a hash algorithm!"));
     (name, alg, output_bits)
 }