diff --git a/README.md b/README.md
index 56e5428..4e6a16a 100644
--- a/README.md
+++ b/README.md
@@ -76,9 +76,9 @@ identification.
 - `reader-pdf` - Enables Portable Document Format (PDF) based file formats detection.
 - `reader-rm` - Enables RealMedia (RM) based file formats detection.
 - `reader-txt` - Enables Plain Text (TXT) detection when the file format is not recognized by its
-  signature. Please note that this option only detects files that contain ASCII/UTF-8-encoded text.
+  signature. Please note that this feature only detects files containing ASCII/UTF-8-encoded text.
 - `reader-xml` - Enables Extensible Markup Language (XML) based file formats detection. Please note
-  that these file formats may be detected without the feature in some cases.
+  that these file formats may be detected without the feature in certain cases.
 - `reader-zip` - Enables ZIP-based file formats detection.
 
 ## Supported file formats
diff --git a/src/lib.rs b/src/lib.rs
index 44b1733..343014e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -116,11 +116,11 @@ identification.
   * [RealAudio (RA)](`FileFormat::Realaudio`)
   * [RealVideo (RV)](`FileFormat::Realvideo`)
 - `reader-txt` - Enables [Plain Text (TXT)](`FileFormat::PlainText`) detection when the file format
-  is not recognized by its signature. Please note that this option only detects files that contain
+  is not recognized by its signature. Please note that this feature only detects files containing
   ASCII/UTF-8-encoded text.
 - `reader-xml` - Enables [Extensible Markup Language (XML)](`FileFormat::ExtensibleMarkupLanguage`)
   based file formats detection. Please note that these file formats may be detected without the
-  feature in some cases.
+  feature in certain cases.
   * [AbiWord (ABW)](`FileFormat::Abiword`)
   * [AbiWord Template (AWT)](`FileFormat::AbiwordTemplate`)
   * [Additive Manufacturing Format (AMF)](`FileFormat::AdditiveManufacturingFormat`)