@@ -672,7 +672,7 @@ private SchemaElementPrinter<GraphQLInputObjectType> inputObjectPrinter() {
                                     String astValue = printAst(defaultValue, fd.getType());
                                     out.format(" = %s", astValue);
                                 }
-                                out.format(directivesString(GraphQLInputObjectField.class, fd.isDeprecated(), fd));
+                                out.print(directivesString(GraphQLInputObjectField.class, fd.isDeprecated(), fd));
                                 out.format("\n");
                             });
                     out.format("}");
 
@@ -2012,6 +2012,28 @@ type Query {
 '''
     }
 
+    def "directive containing formatting specifiers"() {
+        def constraintDirective = GraphQLDirective.newDirective().name("constraint")
+                .argument({
+                    it.name("regex").type(GraphQLString).valueProgrammatic("%")
+                })
+                .build()
+        GraphQLInputObjectType type = GraphQLInputObjectType.newInputObject().name("Person")
+                .field({ it.name("thisMustBeAPercentageSign").type(GraphQLString).withDirective(constraintDirective) })
+                .build()
+
+        when:
+
+        def result = new SchemaPrinter().print(type)
+
+
+        then:
+        result == '''input Person {
+  thisMustBeAPercentageSign: String @constraint(regex : "%")
+}
+'''
+    }
+
     def "can specify a new ordering for the schema printer"() {
 
         def sdl = """
Original file line number	Diff line number	Diff line change
`@@ -672,7 +672,7 @@ private SchemaElementPrinter<GraphQLInputObjectType> inputObjectPrinter() {`
`672`	`672`	`String astValue = printAst(defaultValue, fd.getType());`
`673`	`673`	`out.format(" = %s", astValue);`
`674`	`674`	`}`
`675`		`- out.format(directivesString(GraphQLInputObjectField.class, fd.isDeprecated(), fd));`
	`675`	`+ out.print(directivesString(GraphQLInputObjectField.class, fd.isDeprecated(), fd));`
`676`	`676`	`out.format("\n");`
`677`	`677`	`});`
`678`	`678`	`out.format("}");`