2 files changed, 3 insertions, 2 deletions
diff --git a/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/ConfigurationExtractor.kt b/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/ConfigurationExtractor.kt
index 491aaae0..ba931313 100644
--- a/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/ConfigurationExtractor.kt
+++ b/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/ConfigurationExtractor.kt
@@ -58,7 +58,7 @@ object ConfigurationExtractor {
             PlatformData(it.name, getClasspath(it), getSourceSet(it), it.platformType.toString())
         }
 
-        return config + PlatformData("common", getSourceSet(commonTarget), getClasspath(commonTarget), "common")
+        return config + PlatformData("common", getClasspath(commonTarget), getSourceSet(commonTarget), "common")
     }
 
     fun extractFromKotlinTasks(kotlinTasks: List<Task>, project: Project): PlatformData? {
diff --git a/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt b/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt
index 6e36fb68..6bad548a 100644
--- a/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt
+++ b/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt
@@ -255,7 +255,8 @@ open class DokkaTask : DefaultTask() {
         if (config.moduleName == "") {
             config.moduleName = moduleName
         }
-        config.classpath = (config.classpath as List<Any>).map { it.toString() } // Workaround for Groovy's GStringImpl
+        config.classpath = (config.classpath as List<Any>).map { it.toString() }.distinct() // Workaround for Groovy's GStringImpl
+        config.sourceRoots = config.sourceRoots.distinct().toMutableList()
         config.samples = config.samples.map { project.file(it).absolutePath }
         config.includes = config.includes.map { project.file(it).absolutePath }
         config.suppressedFiles += collectSuppressedFiles(config.sourceRoots)