diff --git a/src/gen_kotlin/templates/module.kt b/src/gen_kotlin/templates/module.kt
index 92734f9..7febfa9 100644
--- a/src/gen_kotlin/templates/module.kt
+++ b/src/gen_kotlin/templates/module.kt
@@ -62,11 +62,11 @@ class BreezSDKModule(reactContext: ReactApplicationContext) : ReactContextBaseJa
     {% endif -%}
     {%- endfor %}  
     @ReactMethod
-    fun setLogStream(filterLevel: String, promise: Promise) {
+    fun setLogStream(filterLevel: String?, promise: Promise) {
         executor.execute {
             try {
                 val emitter = reactApplicationContext.getJSModule(RCTDeviceEventEmitter::class.java)
-                val levelFilter = asLevelFilter(filterLevel);
+                val levelFilter = filterLevel?.let { asLevelFilter(filterLevel) }
 
                 setLogStream(BreezSDKLogStream(emitter), levelFilter)
                 promise.resolve(readableMapOf("status" to "ok"))
diff --git a/src/gen_swift/templates/module.swift b/src/gen_swift/templates/module.swift
index 332cd9e..ed64862 100644
--- a/src/gen_swift/templates/module.swift
+++ b/src/gen_swift/templates/module.swift
@@ -72,10 +72,14 @@ class RNBreezSDK: RCTEventEmitter {
     {% include "TopLevelFunctionTemplate.swift" %}
     {% endif -%}
     {%- endfor %}  
-    @objc(setLogStream:reject:)
-    func setLogStream(_ filterLevel: LevelFilter = nil, resolve: @escaping RCTPromiseResolveBlock, reject: @escaping RCTPromiseRejectBlock) -> Void {
+    @objc(setLogStream:resolve:reject:)
+    func setLogStream(_ filterLevel: String?, resolve: @escaping RCTPromiseResolveBlock, reject: @escaping RCTPromiseRejectBlock) -> Void {
         do {
-            try BreezSDK.setLogStream(logStream: BreezSDKLogStream(), filterLevel: filterLevel)            
+            var levelFilter: LevelFilter? = nil
+            if filterLevel != nil {
+                levelFilter = try BreezSDKMapper.asLevelFilter(levelFilter: filterLevel!)
+            }
+            try BreezSDK.setLogStream(logStream: BreezSDKLogStream(), filterLevel: levelFilter)            
             resolve(["status": "ok"])        
         } catch let err {
             rejectErr(err: err, reject: reject)