diff --git a/spec/helpers/spy_formatter.cr b/spec/helpers/spy_formatter.cr
index 9afc644..394200e 100644
--- a/spec/helpers/spy_formatter.cr
+++ b/spec/helpers/spy_formatter.cr
@@ -28,7 +28,7 @@ class SpyFormatter < Spectator::Formatting::Formatter
 
   # Stores all invocatiosn made to `#end_suite`.
   # Each element is an invocation and the value is the arguments passed to the method.
-  getter end_suite_calls = [] of NamedTuple(report: Spectator::Report, profile: Bool)
+  getter end_suite_calls = [] of NamedTuple(report: Spectator::Report, profile: Spectator::Profile?)
 
   # Number of times the `#end_suite` method was called.
   def end_suite_call_count
diff --git a/src/spectator/formatting/formatter.cr b/src/spectator/formatting/formatter.cr
index ab85900..9efd800 100644
--- a/src/spectator/formatting/formatter.cr
+++ b/src/spectator/formatting/formatter.cr
@@ -14,8 +14,8 @@ module Spectator::Formatting
 
     # Called when a test suite finishes.
     # The results from the entire suite are provided.
-    # The *profile* flag is set to true when profiling results should be generated.
-    abstract def end_suite(report : Report, profile : Bool)
+    # The *profile* value is not nil when profiling results should be displayed.
+    abstract def end_suite(report : Report, profile : Profile?)
 
     # Called before a test starts.
     abstract def start_example(example : Example)
diff --git a/src/spectator/formatting/json_formatter.cr b/src/spectator/formatting/json_formatter.cr
index 6ab4d7f..a2bb26a 100644
--- a/src/spectator/formatting/json_formatter.cr
+++ b/src/spectator/formatting/json_formatter.cr
@@ -20,12 +20,12 @@ module Spectator::Formatting
 
     # Called when a test suite finishes.
     # The results from the entire suite are provided.
-    # The *profile* flag is set to true when profiling results should be generated.
-    def end_suite(report : Report, profile : Bool)
+    # The *profile* value is not nil when profiling results should be displayed.
+    def end_suite(report : Report, profile : Profile?)
       @json.end_array # examples
       totals(report)
       timing(report)
-      profile(report) if profile
+      profile(profile) if profile
       @json.field("result", report.failed? ? "fail" : "success")
       @json.end_object
     end
@@ -66,7 +66,7 @@ module Spectator::Formatting
     end
 
     # Adds the profile information to the document.
-    private def profile(report)
+    private def profile(profile)
       raise NotImplementedError.new("profile")
     end
   end
diff --git a/src/spectator/formatting/junit_formatter.cr b/src/spectator/formatting/junit_formatter.cr
index 3215006..26a6a1a 100644
--- a/src/spectator/formatting/junit_formatter.cr
+++ b/src/spectator/formatting/junit_formatter.cr
@@ -24,8 +24,8 @@ module Spectator::Formatting
 
     # Called when a test suite finishes.
     # The results from the entire suite are provided.
-    # The *profile* flag does nothing for this formatter.
-    def end_suite(report : Report, profile : Bool)
+    # The *profile* value does nothing for this formatter.
+    def end_suite(report : Report, profile : Profile?)
       test_suites_block(report)
       @xml.end_document
       @xml.flush
diff --git a/src/spectator/formatting/silent_formatter.cr b/src/spectator/formatting/silent_formatter.cr
index eaf3464..2098480 100644
--- a/src/spectator/formatting/silent_formatter.cr
+++ b/src/spectator/formatting/silent_formatter.cr
@@ -9,7 +9,7 @@ module Spectator::Formatting
 
     # Called when a test suite finishes.
     # The results from the entire suite are provided.
-    def end_suite(report : Report, profile : Bool)
+    def end_suite(report : Report, profile : Profile?)
       # ... crickets ...
     end
 
diff --git a/src/spectator/formatting/suite_summary.cr b/src/spectator/formatting/suite_summary.cr
index c0e2e2e..be900f5 100644
--- a/src/spectator/formatting/suite_summary.cr
+++ b/src/spectator/formatting/suite_summary.cr
@@ -9,14 +9,14 @@ module Spectator::Formatting
     # Produces the summary of test suite from a report.
     # A block describing each failure is displayed.
     # At the end, the totals and runtime are printed.
-    # The *profile* flag is set to true when profiling results should be generated.
-    def end_suite(report, profile : Bool)
+    # The *profile* value is not nil when profiling results should be displayed.
+    def end_suite(report, profile : Profile?)
       if report.example_count > 0
         @io.puts if is_a?(DotsFormatter)
         @io.puts
       end
       failures(report.failures) if report.failed_count > 0
-      profile(report) if profile
+      profile(profile) if profile
       stats(report)
       remaining(report) if report.remaining?
       if report.failed?
@@ -39,7 +39,7 @@ module Spectator::Formatting
     end
 
     # Produces the profiling section of the summary.
-    private def profile(report)
+    private def profile(profile)
       raise NotImplementedError.new("profile")
     end
 
diff --git a/src/spectator/formatting/tap_formatter.cr b/src/spectator/formatting/tap_formatter.cr
index eee6156..820098d 100644
--- a/src/spectator/formatting/tap_formatter.cr
+++ b/src/spectator/formatting/tap_formatter.cr
@@ -16,9 +16,10 @@ module Spectator::Formatting
 
     # Called when a test suite finishes.
     # The results from the entire suite are provided.
-    def end_suite(report : Report, profile : Bool)
+    # The *profile* value is not nil when profiling results should be displayed.
+    def end_suite(report : Report, profile : Profile?)
       @io.puts "Bail out!" if report.remaining?
-      profile(report) if profile
+      profile(profile) if profile
     end
 
     # Called before a test starts.
@@ -32,8 +33,8 @@ module Spectator::Formatting
       @index += 1
     end
 
-    # Generates profiling information for the report.
-    private def profile(report)
+    # Displays profiling information.
+    private def profile(profile)
       raise NotImplementedError.new("profile")
     end
   end
diff --git a/src/spectator/runner.cr b/src/spectator/runner.cr
index e00bba8..f61c2f7 100644
--- a/src/spectator/runner.cr
+++ b/src/spectator/runner.cr
@@ -24,7 +24,7 @@ module Spectator
       # Generate a report and pass it along to the formatter.
       remaining = @suite.size - results.size
       report = Report.new(results, elapsed, remaining, @config.fail_blank?)
-      @config.each_formatter(&.end_suite(report, @config.profile?))
+      @config.each_formatter(&.end_suite(report, profile(report)))
 
       !report.failed?
     end
@@ -66,5 +66,10 @@ module Spectator
       example_expectations = Expectations::ExampleExpectations.new(expectations)
       SuccessfulResult.new(example, Time::Span.zero, example_expectations)
     end
+
+    # Generates and returns a profile if one should be displayed.
+    private def profile(report)
+      Profile.generate(report) if @config.profile?
+    end
   end
 end