2 files changed, 6 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/duration.rb b/activesupport/lib/active_support/duration.rb
index 314c926ac0..97b4634d7b 100644
--- a/activesupport/lib/active_support/duration.rb
+++ b/activesupport/lib/active_support/duration.rb
@@ -214,8 +214,11 @@ module ActiveSupport
     end
 
     def coerce(other) #:nodoc:
-      if Scalar === other
+      case other
+      when Scalar
         [other, self]
+      when Duration
+        [Scalar.new(other.value), self]
       else
         [Scalar.new(other), self]
       end
diff --git a/activesupport/lib/active_support/inflector/methods.rb b/activesupport/lib/active_support/inflector/methods.rb
index 1af9833d46..ee193add6f 100644
--- a/activesupport/lib/active_support/inflector/methods.rb
+++ b/activesupport/lib/active_support/inflector/methods.rb
@@ -328,6 +328,8 @@ module ActiveSupport
         e.name.to_s == camel_cased_word.to_s)
     rescue ArgumentError => e
       raise unless /not missing constant #{const_regexp(camel_cased_word)}!$/.match?(e.message)
+    rescue LoadError => e
+      raise unless /Unable to autoload constant #{const_regexp(camel_cased_word)}/.match?(e.message)
     end
 
     # Returns the suffix that should be added to a number to denote the position