diff --git a/data/gfx/gfx_sparkFire_a.xml b/data/gfx/gfx_sparkFire_a.xml
index af9f4d14d..eae403120 100644
--- a/data/gfx/gfx_sparkFire_a.xml
+++ b/data/gfx/gfx_sparkFire_a.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0"?>
 
 <!-- For sky particles, the size of the box is ignored -->
-<particles emitter="box" box_x="0.1" box_y="0.5" box_z="0.1">
+<particles emitter="sphere" radius="0.5">
 
-    <spreading angle="30"           />
+    <spreading angle="5"           />
     
     <velocity  x="-0.000"
                y="0.002"
@@ -16,7 +16,7 @@
                max="50"           />
     
     <!-- Minimal and maximal lifetime of a particle, in milliseconds. -->
-    <lifetime  min="3000"
+    <lifetime  min="1000"
                max="3000"          />
     
     <!-- Size of the particles -->