diff --git a/CMakeLists.txt b/CMakeLists.txt
index f13e91791..196952cb4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -153,7 +153,6 @@ cmake_dependent_option(ISAMEM_RAMPAGE "AST Rampage"
 cmake_dependent_option(ISAMEM_IAB     "Intel Above Board"                           ON      "DEV_BRANCH"    OFF)
 cmake_dependent_option(ISAMEM_BRAT    "BocaRAM/AT"                                  ON      "DEV_BRANCH"    OFF)
 cmake_dependent_option(LASERXT        "VTech Laser XT"                              ON      "DEV_BRANCH"    OFF)
-cmake_dependent_option(MGA2           "Matrox Millennium II and Productiva G100"    ON      "DEV_BRANCH"    OFF)
 cmake_dependent_option(OLIVETTI       "Olivetti M290"                               ON      "DEV_BRANCH"    OFF)
 cmake_dependent_option(OPEN_AT        "OpenAT"                                      ON      "DEV_BRANCH"    OFF)
 cmake_dependent_option(OPL4ML         "OPL4-ML daughterboard"                       ON      "DEV_BRANCH"    OFF)
diff --git a/src/video/CMakeLists.txt b/src/video/CMakeLists.txt
index dc0cac1ff..8fbd62e35 100644
--- a/src/video/CMakeLists.txt
+++ b/src/video/CMakeLists.txt
@@ -28,10 +28,6 @@ add_library(vid OBJECT agpgart.c video.c vid_table.c vid_cga.c vid_cga_comp.c
     vid_ibm_rgb528_ramdac.c vid_sdac_ramdac.c vid_ogc.c vid_mga.c vid_nga.c
     vid_tvp3026_ramdac.c vid_att2xc498_ramdac.c vid_xga.c)
 
-if(MGA2)
-    target_compile_definitions(vid PRIVATE USE_MGA2)
-endif()
-
 if(VGAWONDER)
     target_compile_definitions(vid PRIVATE USE_VGAWONDER)
 endif()
diff --git a/src/video/vid_mga.c b/src/video/vid_mga.c
index 89b036ede..b85eb5ad9 100644
--- a/src/video/vid_mga.c
+++ b/src/video/vid_mga.c
@@ -2811,7 +2811,6 @@ static uint8_t
 mystique_readb_linear(uint32_t addr, void *priv)
 {
     const svga_t *svga = (svga_t *) priv;
-    mystique_t *mystique = (mystique_t *) svga->priv;
 
     cycles -= svga->monitor->mon_video_timing_read_b;
 
@@ -2861,7 +2860,6 @@ static void
 mystique_writeb_linear(uint32_t addr, uint8_t val, void *priv)
 {
     svga_t *svga = (svga_t *) priv;
-    mystique_t *mystique = (mystique_t *) svga->priv;
 
     cycles -= svga->monitor->mon_video_timing_write_b;
 
diff --git a/src/win/Makefile.mingw b/src/win/Makefile.mingw
index 94b8af74a..a80458938 100644
--- a/src/win/Makefile.mingw
+++ b/src/win/Makefile.mingw
@@ -64,9 +64,6 @@ ifeq ($(DEV_BUILD), y)
  ifndef LASERXT
   LASERXT := y
  endif
- ifndef MGA2
-  MGA2 := y
- endif
  ifndef OLIVETTI
   OLIVETTI := y
  endif
@@ -131,9 +128,6 @@ else
  ifndef LASERXT
   LASERXT := n
  endif
- ifndef MGA2
-  MGA2 := n
- endif
  ifndef OLIVETTI
   OLIVETTI := n
  endif
@@ -502,10 +496,6 @@ ifeq ($(DEV_BRANCH), y)
   DEVBROBJ += m_xt_laserxt.o
  endif
 
- ifeq ($(MGA2), y)
-  OPTS += -DUSE_MGA2
- endif
-
  ifeq ($(OPEN_AT), y)
   OPTS += -DUSE_OPEN_AT
  endif