diff --git a/dokka-subprojects/plugin-kotlin-as-java/src/main/kotlin/org/jetbrains/dokka/kotlinAsJava/converters/KotlinToJavaConverter.kt b/dokka-subprojects/plugin-kotlin-as-java/src/main/kotlin/org/jetbrains/dokka/kotlinAsJava/converters/KotlinToJavaConverter.kt
index b565164511..7cbcfa7871 100644
--- a/dokka-subprojects/plugin-kotlin-as-java/src/main/kotlin/org/jetbrains/dokka/kotlinAsJava/converters/KotlinToJavaConverter.kt
+++ b/dokka-subprojects/plugin-kotlin-as-java/src/main/kotlin/org/jetbrains/dokka/kotlinAsJava/converters/KotlinToJavaConverter.kt
@@ -55,7 +55,7 @@ public class KotlinToJavaConverter(
                         name = syntheticClassName.name,
                         properties = nodes
                             .filterIsInstance<DProperty>()
-                            .filterNot { it.hasJvmSynthetic() }
+                            .filterNot { it.hasJvmSynthetic() || it.isExtension() }
                             .map { it.asJava(true) },
                         constructors = emptyList(),
                         functions = (
@@ -315,11 +315,11 @@ public class KotlinToJavaConverter(
     internal fun DClass.propertiesInJava(): List<DProperty> {
         val propertiesFromCompanion = companion
             .staticPropertiesForJava()
-            .filterNot { it.hasJvmSynthetic() }
+            .filterNot { it.hasJvmSynthetic() || it.isExtension() }
             .map { it.asJava(isFromObjectOrCompanion = true) }
         val companionInstanceProperty = companion?.companionInstancePropertyForJava()
         val ownProperties = properties
-            .filterNot { it.hasJvmSynthetic() }
+            .filterNot { it.hasJvmSynthetic() || it.isExtension() }
             .map { it.asJava() }
 
         return propertiesFromCompanion + ownProperties + listOfNotNull(companionInstanceProperty)
@@ -376,7 +376,7 @@ public class KotlinToJavaConverter(
             .filterNot { it.hasJvmSynthetic() }
             .flatMap { it.asJava(dri.classNames ?: name) },
         properties = properties
-            .filterNot { it.hasJvmSynthetic() }
+            .filterNot { it.hasJvmSynthetic() || it.isExtension() }
             .map { it.asJava() },
         classlikes = classlikes.map { it.asJava() },
         supertypes = supertypes.mapValues { it.value.map { it.asJava() } }
@@ -403,7 +403,7 @@ public class KotlinToJavaConverter(
             .filterNot { it.hasJvmSynthetic() }
             .flatMap { it.asJava(dri.classNames ?: name.orEmpty()) },
         properties = properties
-            .filterNot { it.hasJvmSynthetic() }
+            .filterNot { it.hasJvmSynthetic() || it.isExtension() }
             .filterNot { it in excludedProps }
             .map { it.asJava(isFromObjectOrCompanion = true) } +
                 DProperty(
diff --git a/dokka-subprojects/plugin-kotlin-as-java/src/test/kotlin/kotlinAsJavaPlugin/JvmFieldTest.kt b/dokka-subprojects/plugin-kotlin-as-java/src/test/kotlin/kotlinAsJavaPlugin/JvmFieldTest.kt
index a22d8c49ad..a1b32d8d95 100644
--- a/dokka-subprojects/plugin-kotlin-as-java/src/test/kotlin/kotlinAsJavaPlugin/JvmFieldTest.kt
+++ b/dokka-subprojects/plugin-kotlin-as-java/src/test/kotlin/kotlinAsJavaPlugin/JvmFieldTest.kt
@@ -167,4 +167,48 @@ class JvmFieldTest : BaseAbstractTest() {
             }
         }
     }
+
+    @Test
+    fun `top level extension property should be a function`() {
+        testInline(
+            """
+            |/src/main/kotlin/kotlinAsJavaPlugin/sample.kt
+            |package kotlinAsJavaPlugin
+            |val String.extProperty: String
+            |    get() = this
+        """.trimMargin(),
+            configuration,
+        ) {
+            documentablesTransformationStage = { module ->
+                val classLike = module.packages.flatMap { it.classlikes }.first()
+                assertNull(classLike.properties.firstOrNull { it.name == "extProperty" })
+                assertEquals(
+                    listOf("getExtProperty"),
+                    classLike.functions.map { it.name })
+            }
+        }
+    }
+
+    @Test
+    fun `in-class extension property should be a function`() {
+        testInline(
+            """
+            |/src/main/kotlin/kotlinAsJavaPlugin/sample.kt
+            |package kotlinAsJavaPlugin
+            |class MyClass {
+            |    val String.extProperty: String
+            |        get() = this
+            |}
+        """.trimMargin(),
+            configuration,
+        ) {
+            documentablesTransformationStage = { module ->
+                val classLike = module.packages.flatMap { it.classlikes }.first()
+                assertNull(classLike.properties.firstOrNull { it.name == "extProperty" })
+                assertEquals(
+                    listOf("getExtProperty"),
+                    classLike.functions.map { it.name })
+            }
+        }
+    }
 }