diff --git a/libraries/graphics/src/graphics/skybox.slf b/libraries/graphics/src/graphics/skybox.slf
index 7b25e36af7..153e73b9ef 100755
--- a/libraries/graphics/src/graphics/skybox.slf
+++ b/libraries/graphics/src/graphics/skybox.slf
@@ -35,8 +35,11 @@ void main(void) {
 #ifdef PROCEDURAL
 
     vec3 color = getSkyboxColor();
-     // Procedural Shaders are expected to be Gamma corrected so let's bring back the RGB in linear space for the rest of the pipeline
-     color = pow(color, vec3(2.2));
+    // Protect from NaNs and negative values
+    color = mix(color, vec3(0), isnan(color));
+    color = max(color, vec3(0));
+    // Procedural Shaders are expected to be Gamma corrected so let's bring back the RGB in linear space for the rest of the pipeline
+    color = pow(color, vec3(2.2));
     _fragColor = vec4(color, 0.0);
 
     // FIXME: scribe does not yet scrub out else statements