diff --git a/ss/SSMain.cc b/ss/SSMain.cc
index bfd4d37..9411fbe 100644
--- a/ss/SSMain.cc
+++ b/ss/SSMain.cc
@@ -14,8 +14,10 @@
 #include <SDL/SDL.h>
 #include "SSMain.h"
 #include "PlainSpin.h"
+#ifndef WITHOUT_ODE
 #include "TumblingLogos.h"
 #include "Towers.h"
+#endif
 
 /* switch to the next screensaver mode after this many milliseconds */
 #define SSMODE_TIMEOUT_MSEC (1000*45)
@@ -121,7 +123,11 @@ RET:
 SSMode * SSMain::startMode()
 {
     static int mode = 0;
+#ifndef WITHOUT_ODE
     const int numModes = 3;
+#else
+    const int numModes = 1;
+#endif
 
     mode++;
     if (mode >= numModes)
@@ -131,10 +137,12 @@ SSMode * SSMain::startMode()
     {
         case 0:
             return new PlainSpin(this);
+#ifndef WITHOUT_ODE
         case 1:
             return new Towers(this);
         default:
             return new TumblingLogos(this);
+#endif
     }
 }