diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/MoonRenderer.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/MoonRenderer.kt
index c2a8fb2ee..5c64fdc16 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/MoonRenderer.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/MoonRenderer.kt
@@ -35,6 +35,7 @@ class MoonRenderer(
         val coordinates = PHASE_UV[phases.ordinal]
         uvStart = Vec2(1.0f / 4 * coordinates.x, 1.0f / 2 * coordinates.y) * texture.textureArrayUV
         uvEnd = Vec2(1.0f / 4 * (coordinates.x + 1), 1.0f / 2 * (coordinates.y + 1)) * texture.textureArrayUV
+        meshInvalid = true
     }
 
     override fun postInit() {
@@ -83,7 +84,7 @@ class MoonRenderer(
             Vec2i(0, 1), // NEW_MOON
             Vec2i(3, 0), // WAXING_CRESCENT
             Vec2i(2, 0), // FIRST_QUARTER
-            Vec2i(1, 0) // WAXING_GIBBOUS
+            Vec2i(1, 0), // WAXING_GIBBOUS
         )
     }
 }
diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/PlanetRenderer.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/PlanetRenderer.kt
index 56f002b3e..5ce5e5ebb 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/PlanetRenderer.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/sky/planet/PlanetRenderer.kt
@@ -80,7 +80,7 @@ abstract class PlanetRenderer(
     private fun calculateMatrix(base: Mat4) {
         val matrix = Mat4(base)
 
-        matrix.rotateAssign(calculateAngle().rad, Vec3(0, 0, -1))
+        matrix.rotateAssign(calculateAngle().rad, Vec3(0, 0, 1))
         matrix.translateAssign(Vec3(0.0f, -0.01f, 0.0f)) // prevents face fighting
 
         matrix.translateAssign(Vec3(0.0f, -modifier, 0.0f)) // moves the planet closer to the player (appears appears bigger)