diff --git a/dlls/mshtml/htmldoc.c b/dlls/mshtml/htmldoc.c
index cb04f195023..cb1fe5568f0 100644
--- a/dlls/mshtml/htmldoc.c
+++ b/dlls/mshtml/htmldoc.c
@@ -2997,7 +2997,7 @@ static HRESULT WINAPI HTMLDocument5_get_compatMode(IHTMLDocument5 *iface, BSTR *
TRACE("(%p)->(%p)\n", This, p);
- *p = SysAllocString(This->doc_node->document_mode == COMPAT_MODE_QUIRKS ? BackCompatW : CSS1CompatW);
+ *p = SysAllocString(This->doc_node->document_mode <= COMPAT_MODE_IE5 ? BackCompatW : CSS1CompatW);
return *p ? S_OK : E_OUTOFMEMORY;
}
@@ -3098,6 +3098,7 @@ static HRESULT WINAPI HTMLDocument6_get_documentMode(IHTMLDocument6 *iface, VARI
static const int docmode_values[] = {
5, /* DOCMODE_QUIRKS */
+ 5, /* DOCMODE_IE5 */
7, /* DOCMODE_IE7 */
8, /* DOCMODE_IE8 */
9, /* DOCMODE_IE8 */
diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h
index d68816decfb..876827b80cc 100644
--- a/dlls/mshtml/mshtml_private.h
+++ b/dlls/mshtml/mshtml_private.h
@@ -233,6 +233,7 @@ TID_LIST
typedef enum {
COMPAT_MODE_QUIRKS,
+ COMPAT_MODE_IE5,
COMPAT_MODE_IE7,
COMPAT_MODE_IE8,
COMPAT_MODE_IE9,
diff --git a/dlls/mshtml/mutation.c b/dlls/mshtml/mutation.c
index 84a290e1c0d..ef4c58cb20b 100644
--- a/dlls/mshtml/mutation.c
+++ b/dlls/mshtml/mutation.c
@@ -388,6 +388,10 @@ static BOOL parse_ua_compatible(const WCHAR *p, compat_mode_t *r)
return FALSE;
switch(v){
+ case 5:
+ case 6:
+ *r = COMPAT_MODE_IE5;
+ break;
case 7:
*r = COMPAT_MODE_IE7;
break;
@@ -401,7 +405,7 @@ static BOOL parse_ua_compatible(const WCHAR *p, compat_mode_t *r)
*r = COMPAT_MODE_IE10;
break;
default:
- *r = v < 7 ? COMPAT_MODE_QUIRKS : COMPAT_MODE_IE11;
+ *r = v < 5 ? COMPAT_MODE_QUIRKS : COMPAT_MODE_IE11;
}
return TRUE;