diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index c8b44a18..5b29b48d 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -678,7 +678,7 @@ uint16_t mode_twinkle(void) {
     SEGENV.step = it;
   }
 
-  unsigned PRNG16 = SEGENV.aux1;
+  uint16_t PRNG16 = SEGENV.aux1;
 
   for (unsigned i = 0; i < SEGENV.aux0; i++)
   {