diff --git a/docs/README.md b/docs/README.md
index 7f4fbee71..9c5d646d2 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,7 +1,7 @@
 # Codewars Handbook ☕️🚀
 
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diff --git a/kata/6-kyu/extract-file-name/README.md b/kata/6-kyu/extract-portion-of-file-name/README.md
similarity index 81%
rename from kata/6-kyu/extract-file-name/README.md
rename to kata/6-kyu/extract-portion-of-file-name/README.md
index a2a040432..be06de638 100644
--- a/kata/6-kyu/extract-file-name/README.md
+++ b/kata/6-kyu/extract-portion-of-file-name/README.md
@@ -1,4 +1,4 @@
-# [extract file name](https://www.codewars.com/kata/extract-file-name "https://www.codewars.com/kata/597770e98b4b340e5b000071")
+# [extract portion of file name](https://www.codewars.com/kata/extract-portion-of-file-name "https://www.codewars.com/kata/597770e98b4b340e5b000071")
 
 You have to extract a portion of the file name as follows:
  - Assume it will start with date represented as long number
diff --git a/kata/6-kyu/extract-file-name/main/FileNameExtractor.java b/kata/6-kyu/extract-portion-of-file-name/main/FileNameExtractor.java
similarity index 98%
rename from kata/6-kyu/extract-file-name/main/FileNameExtractor.java
rename to kata/6-kyu/extract-portion-of-file-name/main/FileNameExtractor.java
index 00e7e9a96..721a9003d 100644
--- a/kata/6-kyu/extract-file-name/main/FileNameExtractor.java
+++ b/kata/6-kyu/extract-portion-of-file-name/main/FileNameExtractor.java
@@ -2,4 +2,4 @@ interface FileNameExtractor {
   static String extractFileName(String dirtyFileName) {
     return dirtyFileName.substring(dirtyFileName.indexOf('_') + 1, dirtyFileName.lastIndexOf('.'));
   }
-}
+}
\ No newline at end of file
diff --git a/kata/6-kyu/extract-file-name/test/FileNameExtractorTest.java b/kata/6-kyu/extract-portion-of-file-name/test/FileNameExtractorTest.java
similarity index 100%
rename from kata/6-kyu/extract-file-name/test/FileNameExtractorTest.java
rename to kata/6-kyu/extract-portion-of-file-name/test/FileNameExtractorTest.java
diff --git a/kata/6-kyu/index.md b/kata/6-kyu/index.md
index a2382887e..ad7f6b83c 100644
--- a/kata/6-kyu/index.md
+++ b/kata/6-kyu/index.md
@@ -128,7 +128,7 @@
 - [Everybody hates Mondays](everybody-hates-mondays)
 - [Evil Autocorrect Prank](evil-autocorrect-prank)
 - [Experimenting with a sequence of complex numbers](experimenting-with-a-sequence-of-complex-numbers)
-- [Extract file name](extract-file-name)
+- [Extract portion of file name](extract-portion-of-file-name)
 # F
 - [Factors of triangle numbers](factors-of-triangle-numbers)
 - [Fat Fingers](fat-fingers)
diff --git a/kata/7-kyu/index.md b/kata/7-kyu/index.md
index c783f42d4..78252f3be 100644
--- a/kata/7-kyu/index.md
+++ b/kata/7-kyu/index.md
@@ -383,7 +383,7 @@
 - [Prison Break](prison-break-1)
 - [Product Array (Array Series #5)](product-array-array-series-number-5)
 - [Product Of Maximums Of Array (Array Series #2)](product-of-maximums-of-array-array-series-number-2)
-- [Product of the main diagonal of a square matrix.](product-of-the-main-diagonal-of-a-square-matrix)
+- [Product of the main diagonal of a square matrix](product-of-the-main-diagonal-of-a-square-matrix)
 # Q
 - [Quicksum](quicksum)
 # R