diff --git a/src/driver/fbaccel.cpp b/src/driver/fbaccel.cpp
index 6e8a46b4e..8c1e8dec2 100644
--- a/src/driver/fbaccel.cpp
+++ b/src/driver/fbaccel.cpp
@@ -870,10 +870,10 @@ void CFbAccel::_blit()
 #define FBIO_BLIT 0x22
 #define FBIO_SET_MANUAL_BLIT _IOW('F', 0x21, __u8)
 #endif
-static bool azblit = getenv("AZBOX_MANUAL_BLIT") ? true : false;
-void CFbAccel::blit()
+static bool autoblit = getenv("AZBOX_KERNEL_BLIT") ? true : false;
+void CFbAccel::_blit()
 {
-	if (!azblit)
+	if (autoblit)
 		return;
 	// blit
 	if (ioctl(fb->fd, FBIO_BLIT) < 0)
diff --git a/src/driver/framebuffer_ng.cpp b/src/driver/framebuffer_ng.cpp
index 2f34cc485..14d079569 100644
--- a/src/driver/framebuffer_ng.cpp
+++ b/src/driver/framebuffer_ng.cpp
@@ -418,8 +418,8 @@ fprintf(stderr, "CFrameBuffer::setMode avail: %d active: %d\n", available, activ
 #define FBIO_SET_MANUAL_BLIT _IOW('F', 0x21, __u8)
 #define FBIO_BLIT 0x22
 #endif
-	// set manual blit if AZBOX_MANUAL_BLIT environment variable is set
-	unsigned char tmp = getenv("AZBOX_MANUAL_BLIT") ? 1 : 0;
+	// set auto blit if AZBOX_KERNEL_BLIT environment variable is set
+	unsigned char tmp = getenv("AZBOX_KERNEL_BLIT") ? 0 : 1;
 	if (ioctl(fd, FBIO_SET_MANUAL_BLIT, &tmp)<0)
 		perror("FBIO_SET_MANUAL_BLIT");