diff --git a/src/render_d3d9.c b/src/render_d3d9.c
index 17c58b3..f582c57 100644
--- a/src/render_d3d9.c
+++ b/src/render_d3d9.c
@@ -133,11 +133,11 @@ BOOL d3d9_create()
             g_d3d9.params.BackBufferCount = 1;
 
             DWORD behavior_flags[] = {
-                D3DCREATE_MULTITHREADED | D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_PUREDEVICE,
-                D3DCREATE_MULTITHREADED | D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_PUREDEVICE,
-                D3DCREATE_MULTITHREADED | D3DCREATE_HARDWARE_VERTEXPROCESSING,
-                D3DCREATE_MULTITHREADED | D3DCREATE_MIXED_VERTEXPROCESSING,
-                D3DCREATE_MULTITHREADED | D3DCREATE_SOFTWARE_VERTEXPROCESSING,
+                D3DCREATE_MULTITHREADED | D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_PUREDEVICE | D3DCREATE_FPU_PRESERVE,
+                D3DCREATE_MULTITHREADED | D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_PUREDEVICE | D3DCREATE_FPU_PRESERVE,
+                D3DCREATE_MULTITHREADED | D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_FPU_PRESERVE,
+                D3DCREATE_MULTITHREADED | D3DCREATE_MIXED_VERTEXPROCESSING | D3DCREATE_FPU_PRESERVE,
+                D3DCREATE_MULTITHREADED | D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_FPU_PRESERVE,
             };
 
             for (int i = 0; i < sizeof(behavior_flags) / sizeof(behavior_flags[0]); i++)