diff --git a/code/server/sv_netdemo.c b/code/server/sv_netdemo.c
index fc14425..71d39bd 100644
--- a/code/server/sv_netdemo.c
+++ b/code/server/sv_netdemo.c
@@ -93,6 +93,7 @@ typedef struct {
 	// buffered server commands for current frame
 	char			serverCmds[SVD_MAX_SERVERCMDS][SVD_MAX_SERVERCMD_LEN];
 	int				numServerCmds;
+	qboolean		mapRestarted;		// set by SVD_ResetDeltaState, written as frame flag
 
 	// playback
 	fileHandle_t	playFile;
@@ -245,6 +246,16 @@ static void SVD_WriteFrame( fileHandle_t f ) {
 	SVD_WriteInt( f, svs.time );
 	SVD_WriteShort( f, (short)sv.num_entities );
 
+	// frame flags: bit 0 = map restarted
+	{
+		byte frameFlags = 0;
+		if ( demo.mapRestarted ) {
+			frameFlags |= 1;
+			demo.mapRestarted = qfalse;
+		}
+		FS_Write( &frameFlags, 1, f );
+	}
+
 	// delta-compress all entities into a message buffer
 	MSG_Init( &msg, msgBuf, sizeof(msgBuf) );
 
@@ -536,6 +547,7 @@ void SVD_ResetDeltaState( void ) {
 	}
 	Com_Memset( demo.prevEntities, 0, sizeof(demo.prevEntities) );
 	Com_Memset( demo.prevPlayers, 0, sizeof(demo.prevPlayers) );
+	demo.mapRestarted = qtrue;  // signal next frame to write restart marker
 }
 
 void SVD_RecordFrame( void ) {
@@ -642,6 +654,17 @@ static qboolean SVD_ReadFrame( fileHandle_t f ) {
 	svs.time = serverTime;
 	numEnts = SVD_ReadShort( f );
 
+	// read frame flags
+	{
+		byte frameFlags;
+		FS_Read( &frameFlags, 1, f );
+		if ( frameFlags & 1 ) {
+			// map was restarted — toggle server bit so client
+			// treats next snapshot as fresh (no interpolation)
+			svs.snapFlagServerBit ^= SNAPFLAG_SERVERCOUNT;
+		}
+	}
+
 	// read entity message (optionally LZ4 compressed)
 	blockLen = SVD_ReadBlock( f, msgBuf, sizeof(msgBuf) );
 	if ( blockLen <= 0 ) {