fix msvc warning

1 files changed, 1 insertions, 1 deletions

diff --git a/shaders/lightmap.cpp b/shaders/lightmap.cpp
index e12b091b..3e3967ee 100644
--- a/shaders/lightmap.cpp
+++ b/shaders/lightmap.cpp
@@ -33,7 +33,7 @@ constexpr T poor_mans_ceil(T x)
     if (x > x0)
         return T(x0 + (int64_t)1);
     else
-        return x0;
+        return T(x0);
 }
 
 constexpr auto neighbor_count = 4;