diff --git a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/remove-high-level-inner-classes.xsl b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/remove-high-level-inner-classes.xsl
index c51e99ca01..29be824b00 100644
--- a/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/remove-high-level-inner-classes.xsl
+++ b/eo-maven-plugin/src/main/resources/org/eolang/maven/pre/remove-high-level-inner-classes.xsl
@@ -22,7 +22,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 -->
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" id="remove-high-level-inner-classes.xsl" version="2.0">
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" id="remove-high-level-inner-classes" version="2.0">
   <xsl:output encoding="UTF-8" method="xml"/>
   <xsl:template match="node()|@*">
     <xsl:copy>