diff --git a/conversion/binaryconversion.h b/conversion/binaryconversion.h
index 9f5e0fb..d853792 100644
--- a/conversion/binaryconversion.h
+++ b/conversion/binaryconversion.h
@@ -77,7 +77,7 @@ namespace BE {
 #endif
 #include "./binaryconversionprivate.h"
 #undef CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL
-}
+} // namespace BE
 
 /*!
  * \brief Encapsulates binary conversion functions using the little endian byte order.
@@ -92,7 +92,7 @@ namespace LE {
 #endif
 #include "./binaryconversionprivate.h"
 #undef CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL
-}
+} // namespace LE
 
 /*!
  * \brief Returns the 8.8 fixed point representation converted from the specified 32-bit floating point number.
diff --git a/io/nativefilestream.cpp b/io/nativefilestream.cpp
index c076015..36acd7d 100644
--- a/io/nativefilestream.cpp
+++ b/io/nativefilestream.cpp
@@ -70,4 +70,4 @@ void NativeFileStream::close()
 }
 
 #endif
-}
+} // namespace IoUtilities
diff --git a/io/nativefilestream.h b/io/nativefilestream.h
index 2a82a71..5d4d4ec 100644
--- a/io/nativefilestream.h
+++ b/io/nativefilestream.h
@@ -40,6 +40,6 @@ inline bool NativeFileStream::is_open() const
 }
 
 #endif
-}
+} // namespace IoUtilities
 
 #endif // IOUTILITIES_NATIVE_FILE_STREAM
diff --git a/tests/testutils.cpp b/tests/testutils.cpp
index 37407c7..b3a2569 100644
--- a/tests/testutils.cpp
+++ b/tests/testutils.cpp
@@ -459,7 +459,7 @@ string TestApplication::readTestfilePathFromSrcRef()
             return string();
         }
 
-            // check whether the referenced source directory contains a "testfiles" directory
+        // check whether the referenced source directory contains a "testfiles" directory
 #ifdef PLATFORM_UNIX // directoryEntries() is not implemented under Windows so we can only to the check under UNIX
         bool hasTestfilesDir = false;
         for (const string &dir : directoryEntries(srcDirContent.data(), DirectoryEntryType::Directory)) {