diff --git a/dll/directx/wine/wined3d/wined3d_private.h b/dll/directx/wine/wined3d/wined3d_private.h
index 0b6f57efe52..1956825be8f 100644
--- a/dll/directx/wine/wined3d/wined3d_private.h
+++ b/dll/directx/wine/wined3d/wined3d_private.h
@@ -196,8 +196,8 @@ static inline float float_16_to_32(const unsigned short *in) {
     } else if(e < 31) {
         return sgn * powf(2, (float)e - 15.0f) * (1.0f + ((float)m / 1024.0f));
     } else {
-        if(m == 0) return sgn / 0.0f; /* +INF / -INF */
-        else return 0.0f / 0.0f; /* NAN */
+        if(m == 0) return sgn * INFINITY; /* +INF / -INF */
+        else return NAN;
     }
 }
 
@@ -218,8 +218,8 @@ static inline float float_24_to_32(DWORD in)
     }
     else
     {
-        if (m == 0) return sgn / 0.0f; /* +INF / -INF */
-        else return 0.0f / 0.0f; /* NAN */
+        if (m == 0) return sgn * INFINITY; /* +INF / -INF */
+        else return NAN;
     }
 }