diff --git a/polymani.pl b/polymani.pl
index 042cd7f..26c5d97 100644
--- a/polymani.pl
+++ b/polymani.pl
@@ -960,7 +960,7 @@ is_polynomial_valid_in_predicate(P, F) :-
     write("Invalid polynomial in "),
     write(F),
     write(": "),
-    write(P),
+    writeln(P),
     fail.
 %% Tests:
 %% ?- is_polynomial_valid_in_predicate(1-x, "Test").
@@ -999,7 +999,7 @@ is_number_valid_in_predicate(C, F) :-
     write("Invalid number in "),
     write(F),
     write(": "),
-    write(C),
+    writeln(C),
     fail.