diff --git a/LUFA/Drivers/USB/Class/Host/HIDParser.c b/LUFA/Drivers/USB/Class/Host/HIDParser.c
index 3fbad65084..241e17a052 100644
--- a/LUFA/Drivers/USB/Class/Host/HIDParser.c
+++ b/LUFA/Drivers/USB/Class/Host/HIDParser.c
@@ -46,8 +46,13 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData, uint16_t ReportSize, HID
 #endif
 	HID_CollectionPath_t* CurrCollectionPath  = NULL;
 
-	memset(ParserData, 0x00, sizeof(HID_ReportInfo_t));
-	memset(StateTable, 0x00, sizeof(StateTable));
+	ParserData->TotalReportItems     = 0;
+	ParserData->UsingMultipleReports = false;
+	
+	for (uint8_t CurrCollection = 0; CurrCollection < HID_MAX_COLLECTIONS; CurrCollection++)
+	  ParserData->CollectionPaths[CurrCollection].Parent = NULL;
+
+	memset(&StateTable[0], 0x00, sizeof(HID_StateTable_t));
 
 	while (ReportSize)
 	{
diff --git a/LUFA/ManPages/ChangeLog.txt b/LUFA/ManPages/ChangeLog.txt
index d62a31cc81..d42ad45e4d 100644
--- a/LUFA/ManPages/ChangeLog.txt
+++ b/LUFA/ManPages/ChangeLog.txt
@@ -31,6 +31,7 @@
   *  - Altered the SCSI commands in the LowLevel Mass Storage Host to save on FLASH space by reducing function calls
   *  - Changed the parameters and behaviour of the USB_GetDeviceConfigDescriptor() function so that it now performs size checks
   *    and data validations internally, to simplify user code
+  *  - Changed HIDParser to only zero out important values in the Parsed HID Report Item Information structure to save cycles
   *
   *  <b>Fixed:</b>
   *  - Fixed possible lockup in the CDC device class driver, when the host sends data that is a multiple of the