diff --git a/src/elements/gpmp.c b/src/elements/gpmp.c
index 2e52460c4..819a1e398 100644
--- a/src/elements/gpmp.c
+++ b/src/elements/gpmp.c
@@ -27,8 +27,6 @@ int update_GPMP(UPDATE_FUNC_ARGS) {
 			parts[i].temp = -256.0+273.15;
 
 		gravmap[(y/CELL)*(XRES/CELL)+(x/CELL)] = 0.2f*(parts[i].temp-273.15);
-		if (y+CELL<YRES && pv[y/CELL+1][x/CELL]<(parts[i].temp-273.15))
-			gravmap[(y/CELL+1)*(XRES/CELL)+(x/CELL)] += 0.1f*((parts[i].temp-273.15)-gravmap[(y/CELL+1)*(XRES/CELL)+(x/CELL)]);
 		for (rx=-2; rx<3; rx++)
 			for (ry=-2; ry<3; ry++)
 				if (x+rx>=0 && y+ry>0 && x+rx<XRES && y+ry<YRES && (rx || ry))