diff --git a/changelog/fix_false_positive_for_multiple_assertions_cop.md b/changelog/fix_false_positive_for_multiple_assertions_cop.md
new file mode 100644
index 00000000..a63a7c6e
--- /dev/null
+++ b/changelog/fix_false_positive_for_multiple_assertions_cop.md
@@ -0,0 +1 @@
+* [#223](https://github.com/rubocop/rubocop-minitest/issues/223): Fix a false positive for `Minitest/MultipleAssertions` when using assertion method with block. ([@fatkodima][])
diff --git a/lib/rubocop/cop/minitest/multiple_assertions.rb b/lib/rubocop/cop/minitest/multiple_assertions.rb
index 27d044d6..c0224abd 100644
--- a/lib/rubocop/cop/minitest/multiple_assertions.rb
+++ b/lib/rubocop/cop/minitest/multiple_assertions.rb
@@ -50,8 +50,9 @@ def on_class(class_node)
         private
 
         def assertions_count(node)
-          base = assertion_method?(node) ? 1 : 0
-          base + node.each_child_node.sum { |c| assertions_count(c) }
+          node.each_descendant(:send).count do |send_node|
+            assertion_method?(send_node)
+          end
         end
 
         def max_assertions
diff --git a/test/rubocop/cop/minitest/multiple_assertions_test.rb b/test/rubocop/cop/minitest/multiple_assertions_test.rb
index 41710023..337dbc0b 100644
--- a/test/rubocop/cop/minitest/multiple_assertions_test.rb
+++ b/test/rubocop/cop/minitest/multiple_assertions_test.rb
@@ -19,6 +19,20 @@ def test_asserts_twice
     RUBY
   end
 
+  def test_registers_offense_when_multiple_expectations_with_block
+    assert_offense(<<~RUBY)
+      class FooTest < Minitest::Test
+        def test_asserts_three_times
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Test case has too many assertions [3/1].
+          assert_equal(foo, bar)
+          assert_raises(SomeError) do
+            assert_equal(baz, bar)
+          end
+        end
+      end
+    RUBY
+  end
+
   def test_checks_when_inheriting_some_class_and_class_name_ending_with_test
     assert_offense(<<~RUBY)
       class FooTest < ActiveSupport::TestCase