diff --git a/src/printer/print.ts b/src/printer/print.ts
index f7bd5f47..a39152b6 100644
--- a/src/printer/print.ts
+++ b/src/printer/print.ts
@@ -169,6 +169,7 @@ const formatParameter: Formatter<Parameter> = node => node.name
 
 const formatTest: FormatterWithContext<Test> = context => node => {
   return intersperse(WS, [
+    ...node.isOnly ? [KEYWORDS.ONLY] : [],
     KEYWORDS.TEST,
     node.name,
     body(context.nest)(formatSentences(context)(node.body.sentences)),
diff --git a/test/printer.test.ts b/test/printer.test.ts
index 96bdc556..db1df019 100644
--- a/test/printer.test.ts
+++ b/test/printer.test.ts
@@ -212,6 +212,19 @@ describe('Wollok Printer', () => {
           }`)
       })
     })
+
+    describe('Test', () => {
+      it('only test', () => {
+        'only test "aSimpleTest"{assert.that(true)} test "anotherTest" {assert.that(true)}'.should.be.formattedTo(`
+        only test "aSimpleTest" {
+          assert.that(true)
+        }
+
+        test "anotherTest" {
+          assert.that(true)
+        }`)
+      })
+    })
   })
   describe('Object', () => {
     it('testBasicObjectDefinition', () => {