diff --git a/Catalysis.pm b/Catalysis.pm
index a30053d..1038251 100644
--- a/Catalysis.pm
+++ b/Catalysis.pm
@@ -22,6 +22,7 @@ my $CENTER = NAMES->{CENTER};
 
 package AaronTools::Catalysis;
 use strict; use warnings;
+no if $] >= 5.018, warnings => qw( experimental::smartmatch );
 use Math::Trig;
 use Math::Vector::Real;
 use Math::MatrixReal;
@@ -1202,6 +1203,7 @@ sub remove_clash {
 
 package AaronTools::Component;
 use strict; use warnings;
+no if $] >= 5.018, warnings => qw( experimental::smartmatch );
 use Math::Trig;
 use Math::Vector::Real;
 use Data::Dumper;
@@ -1720,6 +1722,7 @@ sub part_LJ_energy {
 
 package AaronTools::Ligand;
 use strict; use warnings;
+no if $] >= 5.018, warnings => qw( experimental::smartmatch );
 use Math::Trig;
 use Math::Vector::Real;
 use Data::Dumper;