diff --git a/src/conf.c b/src/conf.c
index f57fff7..0df8e5e 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -159,15 +159,19 @@ int conf_loadConfig(const char* file) {
         if(i) { gl_screen.flags |= OPENGL_AA_LINE; i = 0; }
     conf_loadBool("aa_polygon", i);
     if(i) { gl_screen.flags |= OPENGL_AA_POLYGON; i = 0; }
+
     /* vsync. */
     conf_loadBool("vsync", i);
     if(i) { gl_screen.flags |= OPENGL_VSYNC; i = 0; }
+
     /* FPS. */
     conf_loadBool("showfps", show_fps);
     conf_loadInt("maxfps", max_fps);
 
     /* Input. */
-    conf_loadInt("afterburn", input_afterburnSensibility);
+    i = 250;
+    conf_loadInt("afterburn", i);
+    input_afterburnSensibility = (i < 0) ? UINT_MAX : (unsigned int)i;
 
     /* Sound. */
     conf_loadBool("nosound", i);