diff --git a/source/build/include/a.h b/source/build/include/a.h
index b8c86d2c2..7c498fa91 100644
--- a/source/build/include/a.h
+++ b/source/build/include/a.h
@@ -25,6 +25,7 @@ typedef int64_t coord_t;
 // but where no other adverse effect (except being undefined behavior,
 // obviously) is expected to result:
 typedef int64_t inthi_t;
+#define inthi_rintf llrintf
 
 #if !defined(NOASM) && (defined(_MSC_VER) || (defined(__GNUC__) && defined(__i386__)))
 
diff --git a/source/build/src/engine.cpp b/source/build/src/engine.cpp
index 56c1f0f74..b452a15a1 100644
--- a/source/build/src/engine.cpp
+++ b/source/build/src/engine.cpp
@@ -1865,7 +1865,7 @@ static WSHELPER_DECL void calc_vplcinc_wall(uint32_t *vplc, int32_t *vinc, inthi
 #ifdef HIGH_PRECISION_SPRITE
 static WSHELPER_DECL void calc_vplcinc_sprite(uint32_t *vplc, int32_t *vinc, int32_t x, int32_t y1v)
 {
-    inthi_t const tmpvinc = Blrintf(swallf[x]);
+    inthi_t const tmpvinc = inthi_rintf(swallf[x]);
     inthi_t const tmpvplc = globalzd + tmpvinc*(y1v-globalhoriz+1);
 
     *vinc = tmpvinc;