diff --git a/sdl/sdl-speaker.cpp b/sdl/sdl-speaker.cpp
index a585f60..014d885 100644
--- a/sdl/sdl-speaker.cpp
+++ b/sdl/sdl-speaker.cpp
@@ -15,10 +15,12 @@ extern "C"
 
 #include "globals.h"
 
-#define SDLSIZE (4096)
+#define SDLSIZE (2048)
 // But we want to keep more than just that, so we can fill it full every time
 #define CACHEMULTIPLIER 2
 
+#define WATERLEVEL SDLSIZE
+
 // FIXME: Globals; ick.
 static volatile uint32_t bufIdx = 0;
 static volatile short soundBuf[CACHEMULTIPLIER*SDLSIZE];
@@ -50,7 +52,7 @@ static void audioCallback(void *unused, Uint8 *stream, int len)
     return;
   }
 
-  if (audioRunning==1 && bufIdx >= SDLSIZE) {
+  if (audioRunning==1 && bufIdx >= WATERLEVEL) {
     // Fully up and running now; we got a full cache
     audioRunning = 2;
   } else if (audioRunning==1) {