diff --git a/build.gradle b/build.gradle
index 91ff826..0102b40 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 group = 'com.github.holgerbrandl'
-version = '1.3'
+version = '1.4'
 
 buildscript {
     ext.kotlin_version = '1.1.60'
@@ -52,4 +52,4 @@ publishing {
             artifactId = 'kscript-annotations'
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/ScriptDirectives.kt b/src/main/kotlin/ScriptDirectives.kt
index 9df5b73..2f0c426 100644
--- a/src/main/kotlin/ScriptDirectives.kt
+++ b/src/main/kotlin/ScriptDirectives.kt
@@ -27,6 +27,13 @@ annotation class Include(val includePath: String)
 annotation class KotlinOpts(val runOptions: String)
 
 
+@Target(AnnotationTarget.FILE)
+@Retention(AnnotationRetention.SOURCE)
+@MustBeDocumented
+@Repeatable
+annotation class CompilerOpts(val kotlincFlags: String)
+
+
 // MavenRepository and DependsOnMaven are supported "as it" for compatibility with jupyter notebooks.
 // see https://github.com/kohesive/keplin/blob/master/keplin-maven-resolver/src/main/kotlin/uy/kohesive/keplin/kotlin/script/resolver/maven/MavenResolverAnnotations.kt
 // example https://github.com/kohesive/keplin/blob/a307e05eae091c99c665fe3da52a428fb0e10a6a/keplin-maven-resolver/src/test/kotlin/uy/kohesive/keplin/kotlin/script/resolver/maven/TestMavenScriptDependencies.kt#L38
@@ -38,13 +45,6 @@ annotation class KotlinOpts(val runOptions: String)
 @Repeatable
 annotation class DependsOnMaven(val artifactLocator: String)
 
-@Target(AnnotationTarget.FILE)
-@Retention(AnnotationRetention.SOURCE)
-@Repeatable
-// in contrast to the original version we make the id mandatory here.
-// This keeps ensures compatiblity with keplin but eases parsing
-//annotation class MavenRepository(val id: String = "", val url: String)
-
 /**
  * Declare a maven repository that will be used by kscript to resolve dependencies
  *
@@ -53,4 +53,7 @@ annotation class DependsOnMaven(val artifactLocator: String)
  * @param user Optional user name
  * @param password Optional password (required if user is defined)
  */
+@Target(AnnotationTarget.FILE)
+@Retention(AnnotationRetention.SOURCE)
+@Repeatable
 annotation class MavenRepository(val id: String, val url: String, val user: String = "", val password: String = "")