diff --git a/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/DeviceInfoRetriever.kt b/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/DeviceInfoRetriever.kt
index 6e4530d0..7d81f112 100644
--- a/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/DeviceInfoRetriever.kt
+++ b/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/DeviceInfoRetriever.kt
@@ -1,7 +1,7 @@
 package net.dankito.utils.multiplatform.os
 
 
-expect class DeviceInfoRetriever {
+expect class DeviceInfoRetriever actual constructor() {
 
     fun getDeviceInfo(): DeviceInfo
 
diff --git a/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt b/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
index 405e2665..f6fcf32d 100644
--- a/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
+++ b/common/src/commonMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
@@ -1,7 +1,7 @@
 package net.dankito.utils.multiplatform.os
 
 
-expect class OsHelper() {
+expect class OsHelper actual constructor() {
 
     val osType: OsType
 
diff --git a/common/src/iosMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt b/common/src/iosMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
index e409affd..e21fdaea 100644
--- a/common/src/iosMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
+++ b/common/src/iosMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
@@ -1,7 +1,7 @@
 package net.dankito.utils.multiplatform.os
 
 
-actual class OsHelper actual constructor() {
+actual class OsHelper {
 
 
     actual val osType = OsType.iOS
diff --git a/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/StackTraceHelper.kt b/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/StackTraceHelper.kt
index f9728b61..33aae61d 100644
--- a/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/StackTraceHelper.kt
+++ b/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/StackTraceHelper.kt
@@ -4,7 +4,7 @@ import java.io.PrintWriter
 import java.io.StringWriter
 
 
-actual class StackTraceHelper actual constructor() {
+actual class StackTraceHelper {
 
     actual fun getStackTrace(e: Throwable, maxCountStackTraceElements: Int?): String {
         val stringWriter = StringWriter()
diff --git a/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt b/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
index c2a94068..3d158839 100644
--- a/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
+++ b/common/src/jvmMain/kotlin/net/dankito/utils/multiplatform/os/OsHelper.kt
@@ -1,7 +1,7 @@
 package net.dankito.utils.multiplatform.os
 
 
-actual open class OsHelper actual constructor() {
+actual open class OsHelper {
 
 
     actual val osType: OsType