diff --git a/io/binaryreader.cpp b/io/binaryreader.cpp
index 2d6056f..16afb30 100644
--- a/io/binaryreader.cpp
+++ b/io/binaryreader.cpp
@@ -132,7 +132,7 @@ string BinaryReader::readString(size_t length)
  * \deprecated This method is likely refactored/removed in v5.
  * \todo Refactor/remove in v5.
  */
-string BinaryReader::readTerminatedString(uint8_t termination)
+std::string BinaryReader::readTerminatedString(std::uint8_t termination)
 {
     stringstream ss(ios_base::in | ios_base::out | ios_base::binary);
     ss.exceptions(ios_base::badbit | ios_base::failbit);
@@ -153,7 +153,7 @@ string BinaryReader::readTerminatedString(uint8_t termination)
  * \deprecated This method is likely refactored/removed in v5.
  * \todo Refactor/remove in v5.
  */
-string BinaryReader::readTerminatedString(size_t maxBytesToRead, std::uint8_t termination)
+string BinaryReader::readTerminatedString(std::size_t maxBytesToRead, std::uint8_t termination)
 {
     unique_ptr<char[]> buff = make_unique<char[]>(maxBytesToRead);
     for (char *i = buff.get(), *end = i + maxBytesToRead; i < end; ++i) {
diff --git a/io/binaryreader.h b/io/binaryreader.h
index b044fba..7c426a5 100644
--- a/io/binaryreader.h
+++ b/io/binaryreader.h
@@ -65,7 +65,7 @@ public:
     std::string readLengthPrefixedString();
     std::string readString(std::size_t length);
     std::string readTerminatedString(std::uint8_t termination = 0);
-    std::string readTerminatedString(size_t maxBytesToRead, std::uint8_t termination = 0);
+    std::string readTerminatedString(std::size_t maxBytesToRead, std::uint8_t termination = 0);
     std::string readMultibyteTerminatedStringBE(std::uint16_t termination = 0);
     std::string readMultibyteTerminatedStringLE(std::uint16_t termination = 0);
     std::string readMultibyteTerminatedStringBE(std::size_t maxBytesToRead, std::uint16_t termination = 0);
@@ -195,7 +195,7 @@ inline void BinaryReader::read(char *buffer, std::streamsize length)
 /*!
  * \brief Reads the specified number of bytes from the stream in the character array.
  */
-inline void BinaryReader::read(uint8_t *buffer, std::streamsize length)
+inline void BinaryReader::read(std::uint8_t *buffer, std::streamsize length)
 {
     m_stream->read(reinterpret_cast<char *>(buffer), length);
 }
@@ -617,7 +617,7 @@ inline void BinaryReader::read(char &oneCharacter)
 /*!
  * \brief Reads a single byte/unsigned character from the current stream and advances the current position of the stream by one byte.
  */
-inline void BinaryReader::read(uint8_t &oneByte)
+inline void BinaryReader::read(std::uint8_t &oneByte)
 {
     oneByte = readByte();
 }
diff --git a/io/misc.cpp b/io/misc.cpp
index 609a2db..61a86e6 100644
--- a/io/misc.cpp
+++ b/io/misc.cpp
@@ -12,7 +12,7 @@ namespace IoUtilities {
  * \throws Throws std::ios_base::failure when an error occurs or the specified \a maxSize
  *         would be exceeded.
  */
-string readFile(const string &path, std::string::size_type maxSize)
+std::string readFile(const std::string &path, std::string::size_type maxSize)
 {
     NativeFileStream file;
     file.exceptions(ios_base::failbit | ios_base::badbit);