diff --git a/GpxAndroidSdk.iml b/GpxAndroidSdk.iml
deleted file mode 100644
index 2e806b0..0000000
--- a/GpxAndroidSdk.iml
+++ /dev/null
@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="kotlin-language" name="Kotlin">
-      <configuration version="5" platform="JVM 1.8" allPlatforms="JVM [1.8]" useProjectSettings="false">
-        <compilerSettings />
-        <compilerArguments>
-          <stringArguments>
-            <stringArg name="jvmTarget" arg="1.8" />
-            <stringArg name="apiVersion" arg="1.7" />
-            <stringArg name="languageVersion" arg="1.7" />
-          </stringArguments>
-          <arrayArguments>
-            <arrayArg name="pluginClasspaths" />
-            <arrayArg name="pluginOptions" />
-          </arrayArguments>
-        </compilerArguments>
-      </configuration>
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
-    <output url="file://$MODULE_DIR$/target/classes" />
-    <output-test url="file://$MODULE_DIR$/target/test-classes" />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src/main/kotlin" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/kotlin" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
-      <excludeFolder url="file://$MODULE_DIR$/target" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.jetbrains.kotlin:kotlin-test-junit5:1.7.10" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.jetbrains.kotlin:kotlin-test:1.7.10" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-engine:5.8.2" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-engine:1.8.2" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.apiguardian:apiguardian-api:1.1.2" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-api:5.8.2" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.opentest4j:opentest4j:1.2.0" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-commons:1.8.2" level="project" />
-    <orderEntry type="library" name="Maven: org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10" level="project" />
-    <orderEntry type="library" name="Maven: org.jetbrains.kotlin:kotlin-stdlib:1.7.10" level="project" />
-    <orderEntry type="library" name="Maven: org.jetbrains.kotlin:kotlin-stdlib-common:1.7.10" level="project" />
-    <orderEntry type="library" name="Maven: org.jetbrains:annotations:13.0" level="project" />
-    <orderEntry type="library" name="Maven: org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10" level="project" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt b/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt
index 1dc9085..4393765 100644
--- a/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt
+++ b/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt
@@ -265,7 +265,7 @@ fun toXmlString(value: OffsetDateTime?, nodeName: String): String {
         try {
             return "<${nodeName}>${value.format(DTF)}</${nodeName}>"
         } catch (e: Exception) {
-            log.warn(String.format("Unable to format datetime value %s in node %s", value, nodeName), e)
+            log.warn(String.format("Unable to format datetime value in node %s", nodeName), e)
             return ""
         }
     } else {