diff --git a/src/wp-includes/rest-api.php b/src/wp-includes/rest-api.php
index 8c252b4d1c..ad9bf62b2e 100644
--- a/src/wp-includes/rest-api.php
+++ b/src/wp-includes/rest-api.php
@@ -1068,18 +1068,18 @@ function rest_validate_value_from_schema( $value, $args, $param = '' ) {
 		if ( isset( $args['minimum'] ) && ! isset( $args['maximum'] ) ) {
 			if ( ! empty( $args['exclusiveMinimum'] ) && $value <= $args['minimum'] ) {
 				/* translators: 1: parameter, 2: minimum number */
-				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be greater than %2$d (exclusive)' ), $param, $args['minimum'] ) );
+				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be greater than %2$d' ), $param, $args['minimum'] ) );
 			} elseif ( empty( $args['exclusiveMinimum'] ) && $value < $args['minimum'] ) {
 				/* translators: 1: parameter, 2: minimum number */
-				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be greater than %2$d (inclusive)' ), $param, $args['minimum'] ) );
+				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be greater than or equal to %2$d' ), $param, $args['minimum'] ) );
 			}
 		} elseif ( isset( $args['maximum'] ) && ! isset( $args['minimum'] ) ) {
 			if ( ! empty( $args['exclusiveMaximum'] ) && $value >= $args['maximum'] ) {
 				/* translators: 1: parameter, 2: maximum number */
-				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be less than %2$d (exclusive)' ), $param, $args['maximum'] ) );
+				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be less than %2$d' ), $param, $args['maximum'] ) );
 			} elseif ( empty( $args['exclusiveMaximum'] ) && $value > $args['maximum'] ) {
 				/* translators: 1: parameter, 2: maximum number */
-				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be less than %2$d (inclusive)' ), $param, $args['maximum'] ) );
+				return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must be less than or equal to %2$d' ), $param, $args['maximum'] ) );
 			}
 		} elseif ( isset( $args['maximum'] ) && isset( $args['minimum'] ) ) {
 			if ( ! empty( $args['exclusiveMinimum'] ) && ! empty( $args['exclusiveMaximum'] ) ) {
diff --git a/tests/phpunit/tests/rest-api/rest-categories-controller.php b/tests/phpunit/tests/rest-api/rest-categories-controller.php
index ff24dbb960..fbf7d06018 100644
--- a/tests/phpunit/tests/rest-api/rest-categories-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-categories-controller.php
@@ -186,7 +186,7 @@ class WP_Test_REST_Categories_Controller extends WP_Test_REST_Controller_Testcas
 		$this->assertErrorResponse( 'rest_invalid_param', $response, 400 );
 		$data = $response->get_data();
 		$first_error = array_shift( $data['data']['params'] );
-		$this->assertContains( 'page must be greater than 1 (inclusive)', $first_error );
+		$this->assertContains( 'page must be greater than or equal to 1', $first_error );
 	}
 
 	public function test_get_items_include_query() {
diff --git a/tests/phpunit/tests/rest-api/rest-schema-validation.php b/tests/phpunit/tests/rest-api/rest-schema-validation.php
index f504cb7ee1..82f58e58d8 100644
--- a/tests/phpunit/tests/rest-api/rest-schema-validation.php
+++ b/tests/phpunit/tests/rest-api/rest-schema-validation.php
@@ -19,6 +19,7 @@ class WP_Test_REST_Schema_Validation extends WP_UnitTestCase {
 		);
 		$this->assertTrue( rest_validate_value_from_schema( 1, $schema ) );
 		$this->assertTrue( rest_validate_value_from_schema( 2, $schema ) );
+		$this->assertWPError( rest_validate_value_from_schema( 0.9, $schema ) );
 		$this->assertWPError( rest_validate_value_from_schema( 3, $schema ) );
 		$this->assertWPError( rest_validate_value_from_schema( true, $schema ) );
 	}
@@ -31,6 +32,7 @@ class WP_Test_REST_Schema_Validation extends WP_UnitTestCase {
 		);
 		$this->assertTrue( rest_validate_value_from_schema( 1, $schema ) );
 		$this->assertTrue( rest_validate_value_from_schema( 2, $schema ) );
+		$this->assertWPError( rest_validate_value_from_schema( 0, $schema ) );
 		$this->assertWPError( rest_validate_value_from_schema( 3, $schema ) );
 		$this->assertWPError( rest_validate_value_from_schema( 1.1, $schema ) );
 	}