diff --git a/common/include/common/KVMFR.h b/common/include/common/KVMFR.h
index b65416c0..71f72ffc 100644
--- a/common/include/common/KVMFR.h
+++ b/common/include/common/KVMFR.h
@@ -28,7 +28,7 @@
 #include "types.h"
 
 #define KVMFR_MAGIC   "KVMFR---"
-#define KVMFR_VERSION 12
+#define KVMFR_VERSION 13
 
 #define KVMFR_MAX_DAMAGE_RECTS 64
 
@@ -69,6 +69,7 @@ KVMFRCursor;
 typedef struct KVMFRFrame
 {
   uint32_t        formatVer;          // the frame format version number
+  uint32_t        frameSerial;        // the unique frame number
   FrameType       type;               // the frame data type
   uint32_t        width;              // the frame width
   uint32_t        height;             // the frame height
diff --git a/host/src/app.c b/host/src/app.c
index 0dbc3e06..cc3e6688 100644
--- a/host/src/app.c
+++ b/host/src/app.c
@@ -94,6 +94,7 @@ struct app
   PLGMPMemory    frameMemory[LGMP_Q_FRAME_LEN];
   unsigned int   frameIndex;
   bool           frameValid;
+  uint32_t       frameSerial;
 
   CaptureInterface * iface;
 
@@ -229,6 +230,7 @@ static bool sendFrame(void)
   }
 
   fi->formatVer         = frame.formatVer;
+  fi->frameSerial       = app.frameSerial++;
   fi->width             = frame.width;
   fi->height            = frame.height;
   fi->realHeight        = frame.realHeight;
diff --git a/repos/PureSpice b/repos/PureSpice
index d9b92c57..dde2d242 160000
--- a/repos/PureSpice
+++ b/repos/PureSpice
@@ -1 +1 @@
-Subproject commit d9b92c57a264ea86cf9dd462795fce76af003768
+Subproject commit dde2d2427b574b28ad8669804aeb8236681cde94