diff --git a/src/wp-includes/class.wp-dependencies.php b/src/wp-includes/class.wp-dependencies.php
index e9f701b727bc..649bf172c3b9 100644
--- a/src/wp-includes/class.wp-dependencies.php
+++ b/src/wp-includes/class.wp-dependencies.php
@@ -94,6 +94,15 @@ class WP_Dependencies {
 	 */
 	private $all_queued_deps;
 
+	/**
+	 * List of assets enqueued before details were registered.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @var array
+	 */
+	private $queued_before_register = array();
+
 	/**
 	 * Processes the items and dependencies.
 	 *
@@ -248,6 +257,18 @@ public function add( $handle, $src, $deps = array(), $ver = false, $args = null
 			return false;
 		}
 		$this->registered[ $handle ] = new _WP_Dependency( $handle, $src, $deps, $ver, $args );
+
+		// If the item was enqueued before the details were registered, enqueue it now.
+		if ( array_key_exists( $handle, $this->queued_before_register ) ) {
+			if ( ! is_null( $this->queued_before_register[ $handle ] ) ) {
+				$this->enqueue( $handle . '?' . $this->queued_before_register[ $handle ] );
+			} else {
+				$this->enqueue( $handle );
+			}
+
+			unset( $this->queued_before_register[ $handle ] );
+		}
+
 		return true;
 	}
 
@@ -334,6 +355,12 @@ public function enqueue( $handles ) {
 				if ( isset( $handle[1] ) ) {
 					$this->args[ $handle[0] ] = $handle[1];
 				}
+			} else if ( ! isset( $this->registered[ $handle[0] ] ) ) {
+				$this->queued_before_register[ $handle[0] ] = null; // $args
+
+				if ( isset( $handle[1] ) ) {
+					$this->queued_before_register[ $handle[0] ] = $handle[1];
+				}
 			}
 		}
 	}
@@ -360,6 +387,8 @@ public function dequeue( $handles ) {
 
 				unset( $this->queue[ $key ] );
 				unset( $this->args[ $handle[0] ] );
+			} else if ( array_key_exists( $handle[0], $this->queued_before_register ) ) {
+				unset( $this->queued_before_register[ $handle[0] ] );
 			}
 		}
 	}
diff --git a/tests/phpunit/tests/dependencies.php b/tests/phpunit/tests/dependencies.php
index 354bfd376ef0..0087a0c143d6 100644
--- a/tests/phpunit/tests/dependencies.php
+++ b/tests/phpunit/tests/dependencies.php
@@ -136,4 +136,18 @@ public function test_query_and_registered_enqueued() {
 		$this->assertFalse( $dep->query( 'one' ) );
 
 	}
+
+	function test_enqueue_before_register() {
+		$dep = new WP_Dependencies;
+
+		$this->assertArrayNotHasKey( 'one', $dep->registered );
+
+		$dep->enqueue( 'one' );
+
+		$this->assertNotContains( 'one', $dep->queue );
+
+		$this->assertTrue( $dep->add( 'one', '' ) );
+
+		$this->assertContains( 'one', $dep->queue );
+	}
 }