diff --git a/docs/StardustDocs/topics/dataSources/ApacheArrow.md b/docs/StardustDocs/topics/dataSources/ApacheArrow.md
index c303f02ca9..c63ea11abb 100644
--- a/docs/StardustDocs/topics/dataSources/ApacheArrow.md
+++ b/docs/StardustDocs/topics/dataSources/ApacheArrow.md
@@ -25,7 +25,7 @@ and in [`%use dataframe`](SetupKotlinNotebook.md#integrate-kotlin-dataframe) for
 > {style="warning"}
 
 > Structured (nested) Arrow types such as Struct are not supported yet in Kotlin DataFrame.
-> See an issue: [Add inner / Struct type support in Arrow](https://github.com/Kotlin/dataframe/issues/536)
+> See the issue: [Add inner / Struct type support in Arrow](https://github.com/Kotlin/dataframe/issues/536)
 > {style="warning"}
 
 ## Read
diff --git a/docs/StardustDocs/topics/dataSources/Parquet.md b/docs/StardustDocs/topics/dataSources/Parquet.md
index 7cc2728ad0..18d2aa1f7f 100644
--- a/docs/StardustDocs/topics/dataSources/Parquet.md
+++ b/docs/StardustDocs/topics/dataSources/Parquet.md
@@ -23,7 +23,7 @@ Requires the [`dataframe-arrow` module](Modules.md#dataframe-arrow), which is in
 > {style="warning"}
 
 > Structured (nested) Arrow types such as Struct are not supported yet in Kotlin DataFrame.
-> See an issue: [Add inner / Struct type support in Arrow](https://github.com/Kotlin/dataframe/issues/536)
+> See the issue: [Add inner / Struct type support in Arrow](https://github.com/Kotlin/dataframe/issues/536)
 > {style="warning"}
 
 ## Reading Parquet Files
@@ -68,7 +68,7 @@ Dataset API to scan the data and materialize it as a Kotlin `DataFrame`.
 
 ```kotlin
 // Read from file paths (as strings)
-val df1 = DataFrame.readParquet("data/sales.parquet")
+val df = DataFrame.readParquet("data/sales.parquet")
 ```
 
 <!---FUN readParquetFilePath-->
diff --git a/samples/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/io/Parquet.kt b/samples/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/io/Parquet.kt
index c423cbdfc0..3d235e296e 100644
--- a/samples/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/io/Parquet.kt
+++ b/samples/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/io/Parquet.kt
@@ -1,14 +1,13 @@
 package org.jetbrains.kotlinx.dataframe.samples.io
 
 import io.kotest.matchers.shouldBe
-import java.io.File
-import java.nio.file.Path
-import java.nio.file.Paths
 import org.jetbrains.kotlinx.dataframe.DataFrame
 import org.jetbrains.kotlinx.dataframe.api.NullabilityOptions
-import org.junit.Test
 import org.jetbrains.kotlinx.dataframe.io.readParquet
 import org.jetbrains.kotlinx.dataframe.testParquet
+import org.junit.Test
+import java.io.File
+import java.nio.file.Paths
 
 class Parquet {
     @Test
@@ -56,7 +55,7 @@ class Parquet {
         val df = DataFrame.readParquet(
             file,
             nullability = NullabilityOptions.Infer,
-            batchSize = 64L * 1024
+            batchSize = 64L * 1024,
         )
         // SampleEnd
         df.rowsCount() shouldBe 300