diff --git a/CHANGELOG.md b/CHANGELOG.md
index 277991a5b7..2c5f169898 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Fix `Money::Currency.register` exception when table is not initialized.
+
 ## 7.0.1
 
 - Re-publishing gem to fix file permissions https://github.com/RubyMoney/money/issues/1170
diff --git a/lib/money/currency.rb b/lib/money/currency.rb
index d2d2362741..99b50f57b9 100644
--- a/lib/money/currency.rb
+++ b/lib/money/currency.rb
@@ -173,7 +173,7 @@ def stringified_keys
       def register(curr)
         key = curr.fetch(:iso_code).downcase.to_sym
         @@mutex.synchronize { _instances.delete(key.to_s) }
-        @table[key] = curr
+        table[key] = curr
         @stringified_keys = nil
         clear_iso_numeric_cache
       end
@@ -184,7 +184,7 @@ def register(curr)
       # @param curr [Hash] See {register} method for hash structure
       def inherit(parent_iso_code, curr)
         parent_iso_code = parent_iso_code.downcase.to_sym
-        curr = @table.fetch(parent_iso_code, {}).merge(curr)
+        curr = table.fetch(parent_iso_code, {}).merge(curr)
         register(curr)
       end