diff --git a/source/blender/src/buttons_object.c b/source/blender/src/buttons_object.c
index 4f98ade9cde..2cd1bc80223 100644
--- a/source/blender/src/buttons_object.c
+++ b/source/blender/src/buttons_object.c
@@ -4379,7 +4379,7 @@ static void object_panel_particle_extra(Object *ob)
 
 	/* size changes must create a recalc event always so that sizes are updated properly */
 	uiDefButF(block, NUM, B_PART_RECALC, "Size:",	butx,(buty-=buth),butw,buth, &part->size, 0.01, 100, 10, 1, "The size of the particles");
-	uiDefButF(block, NUM, B_PART_RECALC, "Rand:",	butx,(buty-=buth),butw,buth, &part->randsize, 0.0, 2.0, 10, 1, "Give the particle size a random variation");
+	uiDefButF(block, NUM, B_PART_RECALC, "Rand:",	butx,(buty-=buth),butw,buth, &part->randsize, 0.0, 1.0, 10, 1, "Give the particle size a random variation");
 
 	uiDefButBitI(block, TOG, PART_SIZEMASS, B_PART_RECALC, "Mass from size",	 butx,(buty-=buth),butw,buth, &part->flag, 0, 0, 0, 0, "Multiply mass with particle size");
 	uiDefButF(block, NUM, B_PART_RECALC, "Mass:",	butx,(buty-=buth),butw,buth, &part->mass, 0.01, 100, 10, 1, "Specify the mass of the particles");