diff --git a/gap/structure.gi b/gap/structure.gi
index 08635a1..10bb59c 100644
--- a/gap/structure.gi
+++ b/gap/structure.gi
@@ -237,12 +237,12 @@ InstallMethod(RightPerms,
 end);
 
 ## Distributivity checkers for when need be
-InstallMethod(IsLSelfDistributive, "for magma"
+InstallMethod(IsLSelfDistributive, "for magma",
               [IsMagma],
               M -> IsLSelfDistributiveTable(MultiplicationTable(M))
 );
 
-InstallMethod(IsRSelfDistributive, "for magma"
+InstallMethod(IsRSelfDistributive, "for magma",
               [IsMagma],
               M -> IsRSelfDistributiveTable(MultiplicationTable(M))
 );