diff --git a/cpanfile b/cpanfile
index b74515c9c..58342d082 100644
--- a/cpanfile
+++ b/cpanfile
@@ -18,3 +18,4 @@ requires "File::Copy::Recursive";
 requires "Moo", ">= 2.0";
 
 test_requires "Test::MockModule";
+test_requires "Test::Strict";
diff --git a/share/shutter/resources/modules/Shutter/App/AboutDialog.pm b/share/shutter/resources/modules/Shutter/App/AboutDialog.pm
index 13e6f5ec5..06344c824 100644
--- a/share/shutter/resources/modules/Shutter/App/AboutDialog.pm
+++ b/share/shutter/resources/modules/Shutter/App/AboutDialog.pm
@@ -26,6 +26,7 @@ package Shutter::App::AboutDialog;
 #--------------------------------------
 use utf8;
 use strict;
+use warnings;
 use Gtk3;
 
 #Glib
diff --git a/share/shutter/resources/modules/Shutter/App/GlobalSettings.pm b/share/shutter/resources/modules/Shutter/App/GlobalSettings.pm
index d1f83e4ca..2affb9a74 100644
--- a/share/shutter/resources/modules/Shutter/App/GlobalSettings.pm
+++ b/share/shutter/resources/modules/Shutter/App/GlobalSettings.pm
@@ -26,6 +26,7 @@ package Shutter::App::GlobalSettings;
 #--------------------------------------
 use utf8;
 use strict;
+use warnings;
 
 #Glib
 use Glib qw/TRUE FALSE/;
diff --git a/share/shutter/resources/modules/Shutter/App/HelperFunctions.pm b/share/shutter/resources/modules/Shutter/App/HelperFunctions.pm
index ad07a3fcb..6724aa595 100644
--- a/share/shutter/resources/modules/Shutter/App/HelperFunctions.pm
+++ b/share/shutter/resources/modules/Shutter/App/HelperFunctions.pm
@@ -26,6 +26,7 @@ package Shutter::App::HelperFunctions;
 #--------------------------------------
 use utf8;
 use strict;
+use warnings;
 use Gtk3;
 
 #Glib
diff --git a/share/shutter/resources/modules/Shutter/App/Menu.pm b/share/shutter/resources/modules/Shutter/App/Menu.pm
index d02a125b5..a5355eafa 100644
--- a/share/shutter/resources/modules/Shutter/App/Menu.pm
+++ b/share/shutter/resources/modules/Shutter/App/Menu.pm
@@ -26,6 +26,7 @@ package Shutter::App::Menu;
 #--------------------------------------
 use utf8;
 use strict;
+use warnings;
 use Gtk3;
 
 #Glib
diff --git a/share/shutter/resources/modules/Shutter/App/Optional/Exif.pm b/share/shutter/resources/modules/Shutter/App/Optional/Exif.pm
index 169e11d6e..d6d21e43c 100644
--- a/share/shutter/resources/modules/Shutter/App/Optional/Exif.pm
+++ b/share/shutter/resources/modules/Shutter/App/Optional/Exif.pm
@@ -26,6 +26,7 @@ package Shutter::App::Optional::Exif;
 #--------------------------------------
 use utf8;
 use strict;
+use warnings;
 
 use Glib qw/TRUE FALSE/;
 
diff --git a/share/shutter/resources/modules/Shutter/App/Toolbar.pm b/share/shutter/resources/modules/Shutter/App/Toolbar.pm
index 680551aea..2f8c2a478 100644
--- a/share/shutter/resources/modules/Shutter/App/Toolbar.pm
+++ b/share/shutter/resources/modules/Shutter/App/Toolbar.pm
@@ -26,6 +26,7 @@ package Shutter::App::Toolbar;
 #--------------------------------------
 use utf8;
 use strict;
+use warnings;
 use Gtk3;
 
 #Glib
diff --git a/share/shutter/resources/modules/Shutter/Upload/FTP.pm b/share/shutter/resources/modules/Shutter/Upload/FTP.pm
index 3c41eec72..df0084ca0 100644
--- a/share/shutter/resources/modules/Shutter/Upload/FTP.pm
+++ b/share/shutter/resources/modules/Shutter/Upload/FTP.pm
@@ -24,6 +24,7 @@ package Shutter::Upload::FTP;
 
 use utf8;
 use strict;
+use warnings;
 use Net::FTP;
 use URI;
 use URI::Split qw(uri_split);
diff --git a/share/shutter/resources/modules/Shutter/Upload/Shared.pm b/share/shutter/resources/modules/Shutter/Upload/Shared.pm
index da6b4572d..48c8442c0 100644
--- a/share/shutter/resources/modules/Shutter/Upload/Shared.pm
+++ b/share/shutter/resources/modules/Shutter/Upload/Shared.pm
@@ -25,6 +25,7 @@ package Shutter::Upload::Shared;
 
 use utf8;
 use strict;
+use warnings;
 use POSIX qw/setlocale/;
 use Locale::gettext;
 use Glib qw/TRUE FALSE/;
diff --git a/share/shutter/resources/modules/X11/Protocol/Ext/XFIXES.pm b/share/shutter/resources/modules/X11/Protocol/Ext/XFIXES.pm
index 50dea39cd..46a8ab848 100644
--- a/share/shutter/resources/modules/X11/Protocol/Ext/XFIXES.pm
+++ b/share/shutter/resources/modules/X11/Protocol/Ext/XFIXES.pm
@@ -20,6 +20,7 @@ BEGIN { require 5 }
 package X11::Protocol::Ext::XFIXES;
 use X11::Protocol 'padded';
 use strict;
+use warnings;
 use Carp;
 
 use vars '$VERSION', '@CARP_NOT';
diff --git a/t/syntax.t b/t/syntax.t
new file mode 100644
index 000000000..71857ac88
--- /dev/null
+++ b/t/syntax.t
@@ -0,0 +1,19 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More;
+use Test::Strict;
+
+use FindBin qw/$Bin/;
+
+# Check syntax, use strict and use warnings on all perl files
+
+local $Test::Strict::TEST_WARNINGS = 1;
+
+my @dirs  = ('t', 'bin', "$Bin/../share/shutter/resources/modules/");
+
+all_perl_files_ok(@dirs);
+
+done_testing;