diff --git a/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM.frag b/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM.frag
index d2fca8f4d..7cfb0a815 100644
--- a/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM.frag
+++ b/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM.frag
@@ -119,7 +119,7 @@ float Shadow_DoPCF(in SHADOWMAP tex, in vec4 projCoord){
 
 
 //12 tap poisson disk
-const vec2 poissonDisk[12] =vec2[12]( vec2(-0.1711046, -0.425016),
+vec2 poissonDisk[12] =vec2[12]( vec2(-0.1711046, -0.425016),
  vec2(-0.7829809, 0.2162201),
  vec2(-0.2380269, -0.8835521),
  vec2(0.4198045, 0.1687819),
diff --git a/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM15.frag b/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM15.frag
index cd41b9336..8368ae0cf 100644
--- a/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM15.frag
+++ b/engine/src/core-data/Common/MatDefs/Shadow/PostShadowPSSM15.frag
@@ -125,7 +125,7 @@ float Shadow_DoPCF(in SHADOWMAP tex, in vec4 projCoord){
 
 
 //12 tap poisson disk
-const vec2 poissonDisk[12] =vec2[12]( vec2(-0.1711046, -0.425016),
+vec2 poissonDisk[12] =vec2[12]( vec2(-0.1711046, -0.425016),
  vec2(-0.7829809, 0.2162201),
  vec2(-0.2380269, -0.8835521),
  vec2(0.4198045, 0.1687819),