diff --git a/src/m_menu.c b/src/m_menu.c
index d8d8f4a1..c7461426 100644
--- a/src/m_menu.c
+++ b/src/m_menu.c
@@ -5126,7 +5126,7 @@ menudemo_t *demolist;
 
 #define DF_ENCORE       0x40
 static INT16 replayScrollTitle = 0;
-static INT8 replayScrollDelay = TICRATE, replayScrollDir = 1;
+static SINT8 replayScrollDelay = TICRATE, replayScrollDir = 1;
 
 static void PrepReplayList(void)
 {
diff --git a/src/v_video.c b/src/v_video.c
index 83bfff73..2d8ca812 100644
--- a/src/v_video.c
+++ b/src/v_video.c
@@ -1227,7 +1227,7 @@ void V_DrawVhsEffect(boolean rewind)
 	UINT8 *tmapstart = ((UINT8 *)transtables + (6<<FF_TRANSSHIFT));
 #endif
 	UINT8 *thismapstart;
-	INT8 offs;
+	SINT8 offs;
 
 	UINT8 barsize = vid.dupy<<5;
 	UINT8 updistort = vid.dupx<<(rewind ? 5 : 3);