diff --git a/features/profile-hook-feature.feature b/features/profile-hook-feature.feature
new file mode 100644
index 0000000..56e5863
--- /dev/null
+++ b/features/profile-hook-feature.feature
@@ -0,0 +1,10 @@
+Feature: Profile a specific hook
+
+  Scenario: Profile a hook without any callbacks
+    Given a WP install
+
+    When I run `wp profile --hook=setup_theme --fields=callback`
+    Then STDOUT should be a table containing rows:
+      | callback          |
+      | total             |
+    And STDERR should be empty
diff --git a/inc/class-command.php b/inc/class-command.php
index 1cf6d27..6afdc6f 100644
--- a/inc/class-command.php
+++ b/inc/class-command.php
@@ -164,6 +164,10 @@ class Command {
 		else
 			++$wp_actions[$tag];
 
+		if ( empty( $wp_filter[ $tag ] ) ) {
+			return;
+		}
+
 		if ( !isset($wp_filter['all']) )
 			$wp_current_filter[] = $tag;