diff --git a/src/Platform.c b/src/Platform.c
index 8ce347dbe..ac6a29e4c 100644
--- a/src/Platform.c
+++ b/src/Platform.c
@@ -27,6 +27,7 @@
 
 #define Socket__Error() WSAGetLastError()
 static HANDLE heap;
+static void Platform_DecodeString(cc_string* dst, const void* data, int len);
 
 const cc_result ReturnCode_FileShareViolation = ERROR_SHARING_VIOLATION;
 const cc_result ReturnCode_FileNotFound     = ERROR_FILE_NOT_FOUND;
@@ -490,7 +491,7 @@ cc_result Directory_Enum(const cc_string* dirPath, void* obj, Directory_EnumCall
 		if (src[0] == '.' && src[1] == '.' && src[2] == '\0') continue;
 
 		len = String_Length(src);
-		Platform_DecodeString(&path, src, len);
+		String_AppendUtf8(&path, src, len);
 
 		/* TODO: fallback to stat when this fails */
 		if (entry->d_type == DT_DIR) {
@@ -1546,7 +1547,8 @@ int Platform_EncodeString(void* data, const cc_string* src) {
 	return src->length * 2;
 }
 
-void Platform_DecodeString(cc_string* dst, const void* data, int len) {
+/* Attempts to append all characters from the platform specific encoded data to the given string. */
+static void Platform_DecodeString(cc_string* dst, const void* data, int len) {
 #ifdef UNICODE
 	String_AppendUtf16(dst, (const cc_unichar*)data, len * 2);
 #else
@@ -1656,10 +1658,6 @@ int Platform_EncodeString(void* data, const cc_string* src) {
 	return len;
 }
 
-void Platform_DecodeString(cc_string* dst, const void* data, int len) {
-	String_AppendUtf8(dst, (const cc_uint8*)data, len);
-}
-
 static void Platform_InitPosix(void) {
 	signal(SIGCHLD, SIG_IGN);
 	/* So writing to closed socket doesn't raise SIGPIPE */
@@ -1701,7 +1699,7 @@ cc_bool Platform_DescribeError(cc_result res, cc_string* dst) {
 	if (len == -1) return false;
 
 	len = String_CalcLen(chars, NATIVE_STR_LEN);
-	Platform_DecodeString(dst, chars, len);
+	String_AppendUtf8(dst, chars, len);
 	return true;
 }
 
@@ -1936,7 +1934,7 @@ cc_string JavaGetString(JNIEnv* env, jstring str, char* buffer) {
 	dst.buffer   = buffer;
 	dst.length   = 0;
 	dst.capacity = NATIVE_STR_LEN;
-	String_AppendUtf8(&dst, (const cc_uint8*)src, len);
+	String_AppendUtf8(&dst, src, len);
 
 	(*env)->ReleaseStringUTFChars(env, str, src);
 	return dst;
diff --git a/src/Platform.h b/src/Platform.h
index 5838e5bfc..26f8d778d 100644
--- a/src/Platform.h
+++ b/src/Platform.h
@@ -34,8 +34,6 @@ extern const cc_result ReturnCode_SocketWouldBlock;
 /* NOTE: Only useful for platform specific function calls - do NOT try to interpret the data. */
 /* Returns the number of bytes written, excluding trailing NULL terminator. */
 int Platform_EncodeString(void* data, const cc_string* src);
-/* Attempts to append all characters from the platform specific encoded data to the given string. */
-void Platform_DecodeString(cc_string* dst, const void* data, int len);
 
 /* Initialises the platform specific state. */
 void Platform_Init(void);
diff --git a/src/String.c b/src/String.c
index 5bbf8876a..c02494f02 100644
--- a/src/String.c
+++ b/src/String.c
@@ -594,7 +594,8 @@ void String_AppendUtf16(cc_string* value, const cc_unichar* chars, int numBytes)
 	}
 }
 
-void String_AppendUtf8(cc_string* value, const cc_uint8* chars, int numBytes) {
+void String_AppendUtf8(cc_string* value, const void* data, int numBytes) {
+	const cc_uint8* chars = (const cc_uint8*)data;
 	int len; cc_codepoint cp; char c;
 
 	for (; numBytes > 0; numBytes -= len) {
@@ -606,7 +607,8 @@ void String_AppendUtf8(cc_string* value, const cc_uint8* chars, int numBytes) {
 	}
 }
 
-void String_DecodeCP1252(cc_string* value, const cc_uint8* chars, int numBytes) {
+void String_DecodeCP1252(cc_string* value, const void* data, int numBytes) {
+	const cc_uint8* chars = (const cc_uint8*)data;
 	int i; char c;
 
 	for (i = 0; i < numBytes; i++) {
diff --git a/src/String.h b/src/String.h
index 490be5b66..82bdd19be 100644
--- a/src/String.h
+++ b/src/String.h
@@ -186,10 +186,10 @@ int Convert_CP437ToUtf8(char c, cc_uint8* data);
 void String_AppendUtf16(cc_string* str, const cc_unichar* chars, int numBytes);
 /* Attempts to append all characters from UTF8 encoded data to the given string. */
 /* Characters not in code page 437 are omitted. */
-void String_AppendUtf8(cc_string* str, const cc_uint8* chars, int numBytes);
+void String_AppendUtf8(cc_string* str, const void* data, int numBytes);
 /* Attempts to append all characters from CP-1252 encoded data to the given string. */
 /* Characters not in code page 437 are omitted. */
-void String_DecodeCP1252(cc_string* str, const cc_uint8* chars, int numBytes);
+void String_DecodeCP1252(cc_string* str, const void* data, int numBytes);
 
 /* Attempts to convert the given string into an unsigned 8 bit integer. */
 CC_API cc_bool Convert_ParseUInt8(const cc_string*  str, cc_uint8* value);
diff --git a/src/Window.c b/src/Window.c
index 57a87a278..099004004 100644
--- a/src/Window.c
+++ b/src/Window.c
@@ -2069,7 +2069,7 @@ void Clipboard_GetText(cc_string* value) {
 	} else if (!(err = PasteboardCopyItemFlavorData(pbRef, itemID, FMT_UTF8, &outData))) {
 		ptr = CFDataGetBytePtr(outData);
 		len = CFDataGetLength(outData);
-		if (ptr) String_AppendUtf8(value, (cc_uint8*)ptr, len);
+		if (ptr) String_AppendUtf8(value, ptr, len);
 	}
 }
 
@@ -3513,7 +3513,7 @@ EMSCRIPTEN_KEEPALIVE void Window_GotClipboardText(char* src) {
 	if (!clipboard_func) return;
 
 	String_InitArray(str, strBuffer);
-	Platform_DecodeString(&str, src, String_CalcLen(src, 2048));
+	String_AppendUtf8(&str, src, String_CalcLen(src, 2048));
 	clipboard_func(&str, clipboard_obj);
 	clipboard_func = NULL;
 }
@@ -3652,7 +3652,7 @@ EMSCRIPTEN_KEEPALIVE void Window_OnFileUploaded(const char* src) {
 	cc_string file; char buffer[FILENAME_SIZE];
 	String_InitArray(file, buffer);
 
-	Platform_DecodeString(&file, src, String_Length(src));
+	String_AppendUtf8(&file, src, String_Length(src));
 	uploadCallback(&file);
 	uploadCallback = NULL;
 }
@@ -3701,7 +3701,7 @@ EMSCRIPTEN_KEEPALIVE void Window_OnTextChanged(const char* src) {
 	cc_string str; char buffer[800];
 	String_InitArray(str, buffer);
 
-	Platform_DecodeString(&str, src, String_CalcLen(src, 3200));
+	String_AppendUtf8(&str, src, String_CalcLen(src, 3200));
 	Event_RaiseString(&InputEvents.TextChanged, &str);
 }
 
@@ -4887,7 +4887,7 @@ void GLContext_GetApiInfo(cc_string* info) {
 	len = String_CalcLen(buffer, NATIVE_STR_LEN);
 	if (!len) return;
 	String_AppendConst(info, "GPU: ");
-	String_AppendUtf8(info, (const cc_uint8*)buffer, len);
+	String_AppendUtf8(info, buffer, len);
 }
 #endif
 #endif