diff --git a/tests/matrix-test.c b/tests/matrix-test.c
index 7b414c9a7..6bf4ba3a7 100644
--- a/tests/matrix-test.c
+++ b/tests/matrix-test.c
@@ -288,7 +288,7 @@ test_loop_speed_matrixvector(void)
 	}
 	t = read_timer();
 
-	printf("%lu iterations in %f seconds, avg. %.1f us/iter.\n",
+	printf("%lu iterations in %f seconds, avg. %.1f ns/iter.\n",
 	       count, t, 1e9 * t / count);
 }
 
@@ -315,7 +315,7 @@ test_loop_speed_inversetransform(void)
 	}
 	t = read_timer();
 
-	printf("%lu iterations in %f seconds, avg. %.1f us/iter.\n",
+	printf("%lu iterations in %f seconds, avg. %.1f ns/iter.\n",
 	       count, t, 1e9 * t / count);
 }