diff --git a/uisimulator/sdl/SOURCES b/uisimulator/sdl/SOURCES
index 92bf021711..8f1f3e2fd7 100644
--- a/uisimulator/sdl/SOURCES
+++ b/uisimulator/sdl/SOURCES
@@ -2,7 +2,7 @@ button.c
 kernel.c
 #ifdef HAVE_LCD_BITMAP
 lcd-bitmap.c
-#elif HAVE_LCD_CHARCELLS
+#elif defined(HAVE_LCD_CHARCELLS)
 lcd-charcell.c
 #endif
 #ifdef HAVE_REMOTE_LCD
diff --git a/uisimulator/sdl/uisdl.c b/uisimulator/sdl/uisdl.c
index d298167df1..037c54a9bf 100644
--- a/uisimulator/sdl/uisdl.c
+++ b/uisimulator/sdl/uisdl.c
@@ -27,7 +27,7 @@
 #include "lcd-sdl.h"
 #ifdef HAVE_LCD_BITMAP
 #include "lcd-bitmap.h"
-#elif HAVE_LCD_CHARCELLS
+#elif defined(HAVE_LCD_CHARCELLS)
 #include "lcd-charcell.h"
 #endif
 #ifdef HAVE_REMOTE_LCD