diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd9d705e..f7144026 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ## [Unreleased]
 ### Changed
 - Remove support for Ruby < 2.3
+- Allow use of duration (e.g. `30.minutes`) for interval type scheduling
 
 ## [4.5.0] - 2021-09-25
 ### Added
diff --git a/lib/resque/scheduler.rb b/lib/resque/scheduler.rb
index 54ed74fc..5d49ce9d 100644
--- a/lib/resque/scheduler.rb
+++ b/lib/resque/scheduler.rb
@@ -144,7 +144,7 @@ def load_schedule_job(name, config)
           interval_defined = false
           interval_types = %w(cron every)
           interval_types.each do |interval_type|
-            next unless !config[interval_type].nil? && !config[interval_type].empty?
+            next unless !config[interval_type].nil? && !config[interval_type].to_s.empty?
             args = optionizate_interval_value(config[interval_type])
             args = [args, nil, job: true] if args.is_a?(::String)
 
diff --git a/lib/resque/scheduler/server.rb b/lib/resque/scheduler/server.rb
index fa299654..3f4883a9 100644
--- a/lib/resque/scheduler/server.rb
+++ b/lib/resque/scheduler/server.rb
@@ -185,13 +185,13 @@ def schedule_interval(config)
 
         def schedule_interval_every(every)
           every = [*every]
-          s = 'every: ' << every.first
+          s = 'every: ' << "#{every.first}#{'s' if every.first.is_a?(Numeric)}"
 
           return s unless every.length > 1
 
           s << ' ('
           meta = every.last.map do |key, value|
-            "#{key.to_s.tr('_', ' ')} #{value}"
+            "#{key.to_s.tr('_', ' ')} #{value}#{'s' if value.is_a?(Numeric)}"
           end
           s << meta.join(', ') << ')'
         end
diff --git a/test/scheduler_test.rb b/test/scheduler_test.rb
index d759edd1..b783a4bd 100644
--- a/test/scheduler_test.rb
+++ b/test/scheduler_test.rb
@@ -132,6 +132,22 @@
     assert job.opts.keys.include?(:first_in)
   end
 
+  test 'load_schedule_job with every fixnum' do
+    Resque::Scheduler.load_schedule_job(
+      'some_ivar_job',
+      'every' => 30,
+      'class' => 'SomeIvarJob',
+      'args' => '/tmp'
+    )
+
+    assert_equal(1, Resque::Scheduler.rufus_scheduler.jobs.size)
+    assert_equal(1, Resque::Scheduler.scheduled_jobs.size)
+    assert Resque::Scheduler.scheduled_jobs.keys.include?('some_ivar_job')
+    job = Resque::Scheduler.rufus_scheduler.jobs.first
+    next_times = job.next_times(2)
+    assert_equal(30, next_times[1] - next_times[0])
+  end
+
   test 'load_schedule_job with cron with options' do
     Resque::Scheduler.load_schedule_job(
       'some_ivar_job',