diff --git a/configure.ac b/configure.ac
index 2a7da91..80418e5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,25 +31,25 @@ AC_SUBST([FONT_NAME])
 
 AC_ARG_ENABLE([startup-msg],
     AS_HELP_STRING([--disable-startup-msg], [Disable text banner output on startup]),
-    [disable_startup_msg=true],
-    [disable_startup_msg=false])
-AS_IF([test x$disable_startup_msg = xtrue], [
+    [enable_startup_msg=$enableval],
+    [enable_startup_msg=yes])
+AS_IF([test x$enable_startup_msg != xyes], [
     EXTRA_GCC_FLAGS="$EXTRA_GCC_FLAGS -DPSPLASH_DISABLE_STARTUP_MSG"
 ])
 
 AC_ARG_ENABLE([progress-bar],
     AS_HELP_STRING([--disable-progress-bar], [Disable progress bar]),
-    [disable_progress_bar=true],
-    [disable_progress_bar=false])
-AS_IF([test x$disable_progress_bar = xtrue], [
+    [enable_progress_bar=$enableval],
+    [enable_progress_bar=yes])
+AS_IF([test x$enable_progress_bar != xyes], [
     EXTRA_GCC_FLAGS="$EXTRA_GCC_FLAGS -DPSPLASH_DISABLE_PROGRESS_BAR"
 ])
 
 AC_ARG_ENABLE([img-fullscreen],
     AS_HELP_STRING([--enable-img-fullscreen], [Enable the logo image in fullscreen mode)]),
-    [img_fullscreen=true],
-    [img_fullscreen=false])
-AS_IF([test x$img_fullscreen = xtrue], [
+    [img_fullscreen=$enableval],
+    [img_fullscreen=no])
+AS_IF([test x$img_fullscreen = xyes], [
     EXTRA_GCC_FLAGS="$EXTRA_GCC_FLAGS -DPSPLASH_IMG_FULLSCREEN=1"
 ])