diff --git a/src/GitFollow/Cli/OptionsNormalizer.pm b/src/GitFollow/Cli/OptionsNormalizer.pm
index dfe3535..aa0a4eb 100644
--- a/src/GitFollow/Cli/OptionsNormalizer.pm
+++ b/src/GitFollow/Cli/OptionsNormalizer.pm
@@ -10,7 +10,6 @@ use strict;
 use warnings;
 use Exporter qw(import);
 use GitFollow::Log qw(parse_opts);
-use GitFollow::Stdlib::NumberUtils qw(is_numeric);
 
 our @EXPORT_OK = qw(
 	format
diff --git a/src/GitFollow/Log.pm b/src/GitFollow/Log.pm
index 84413de..02015b9 100644
--- a/src/GitFollow/Log.pm
+++ b/src/GitFollow/Log.pm
@@ -10,6 +10,7 @@ use strict;
 use warnings;
 use Exporter qw(import);
 use GitFollow::Environment qw($GIT_PATH);
+use GitFollow::Stdlib::NumberUtils qw(is_numeric);
 
 our @EXPORT_OK = qw(
 	parse_opts
diff --git a/src/GitFollow/Stdlib/NumberUtils.pm b/src/GitFollow/Stdlib/NumberUtils.pm
index e65ce96..6d2b19a 100644
--- a/src/GitFollow/Stdlib/NumberUtils.pm
+++ b/src/GitFollow/Stdlib/NumberUtils.pm
@@ -20,3 +20,5 @@ sub is_numeric {
 	return (defined $num)
 	    ? ($num =~ /^\d+$/ ? 1 : 0) : 0;
 }
+
+1;