diff --git a/language.version b/language.version
index d2736be4b..b0dbfb106 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\chSWWM \czGZ\c- \cw1.2pre r86 \cu(Fri 17 Dec 20:41:55 CET 2021)\c-";
-SWWM_SHORTVER="\cw1.2pre r86 \cu(2021-12-17 20:41:55)\c-";
+SWWM_MODVER="\chSWWM \czGZ\c- \cw1.2pre r87 \cu(Sat 18 Dec 00:03:22 CET 2021)\c-";
+SWWM_SHORTVER="\cw1.2pre r87 \cu(2021-12-18 00:03:22)\c-";
diff --git a/shaders/pp/Ghostscreen.fp b/shaders/pp/Ghostscreen.fp
index 3eb6d082e..84e9a3773 100644
--- a/shaders/pp/Ghostscreen.fp
+++ b/shaders/pp/Ghostscreen.fp
@@ -7,8 +7,8 @@ void main()
 	float p = distance(uv,vec2(.5))/sqrt(2.);
 	for ( float i=0.; i<4.; i+=1. )
 	{
-		vec2 suv = fract((.5-uv)*(1.-i*p*p)+.5);
+		vec2 suv = (.5-uv)*(1.-i*p*p)+.5;
 		col += texture(InputTexture,suv).rgb*pow(p,2.)*vec3(.6,.8,1.3);
 	}
-	FragColor = vec4(col,1.0);
+	FragColor = vec4(col,1.);
 }