diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index 73b88b61984..d80dc1e0f74 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -1255,7 +1255,8 @@ static HRESULT WINAPI ddraw1_GetDisplayMode(IDirectDraw *iface, DDSURFACEDESC *s
 static HRESULT WINAPI ddraw7_GetFourCCCodes(IDirectDraw7 *iface, DWORD *NumCodes, DWORD *Codes)
 {
     IDirectDrawImpl *This = (IDirectDrawImpl *)iface;
-    WINED3DFORMAT formats[] = {
+    static const WINED3DFORMAT formats[] =
+    {
         WINED3DFMT_YUY2, WINED3DFMT_UYVY, WINED3DFMT_YV12,
         WINED3DFMT_DXT1, WINED3DFMT_DXT2, WINED3DFMT_DXT3, WINED3DFMT_DXT4, WINED3DFMT_DXT5,
         WINED3DFMT_ATI2N, WINED3DFMT_NVHU, WINED3DFMT_NVHS
@@ -1948,7 +1949,7 @@ static HRESULT WINAPI ddraw7_EnumDisplayModes(IDirectDraw7 *iface, DWORD Flags,
     WINED3DDISPLAYMODE *enum_modes = NULL;
     unsigned enum_mode_count = 0, enum_mode_array_size = 0;
 
-    WINED3DFORMAT checkFormatList[] =
+    static const WINED3DFORMAT checkFormatList[] =
     {
         WINED3DFMT_B8G8R8X8_UNORM,
         WINED3DFMT_B5G6R5_UNORM,
diff --git a/dlls/ddraw/device.c b/dlls/ddraw/device.c
index bfd98a788c3..3b39177c296 100644
--- a/dlls/ddraw/device.c
+++ b/dlls/ddraw/device.c
@@ -1122,7 +1122,8 @@ IDirect3DDeviceImpl_7_EnumTextureFormats(IDirect3DDevice7 *iface,
     WINED3DDISPLAYMODE mode;
     unsigned int i;
 
-    WINED3DFORMAT FormatList[] = {
+    static const WINED3DFORMAT FormatList[] =
+    {
         /* 32 bit */
         WINED3DFMT_B8G8R8A8_UNORM,
         WINED3DFMT_B8G8R8X8_UNORM,
@@ -1142,7 +1143,8 @@ IDirect3DDeviceImpl_7_EnumTextureFormats(IDirect3DDevice7 *iface,
         WINED3DFMT_DXT5,
     };
 
-    WINED3DFORMAT BumpFormatList[] = {
+    static const WINED3DFORMAT BumpFormatList[] =
+    {
         WINED3DFMT_R8G8_SNORM,
         WINED3DFMT_R5G5_SNORM_L6_UNORM,
         WINED3DFMT_R8G8_SNORM_L8X8_UNORM,
@@ -1286,7 +1288,8 @@ IDirect3DDeviceImpl_2_EnumTextureFormats(IDirect3DDevice2 *iface,
     unsigned int i;
     WINED3DDISPLAYMODE mode;
 
-    WINED3DFORMAT FormatList[] = {
+    static const WINED3DFORMAT FormatList[] =
+    {
         /* 32 bit */
         WINED3DFMT_B8G8R8A8_UNORM,
         WINED3DFMT_B8G8R8X8_UNORM,