diff --git a/src/ol/expression/expression.js b/src/ol/expression/expressions.js
similarity index 100%
rename from src/ol/expression/expression.js
rename to src/ol/expression/expressions.js
diff --git a/test/spec/ol/expression/expression.test.js b/test/spec/ol/expression/expressions.test.js
similarity index 100%
rename from test/spec/ol/expression/expression.test.js
rename to test/spec/ol/expression/expressions.test.js