diff --git a/dlls/fusion/asmname.c b/dlls/fusion/asmname.c
index bcf49a7f214..54be4e8e9cf 100644
--- a/dlls/fusion/asmname.c
+++ b/dlls/fusion/asmname.c
@@ -522,8 +522,16 @@ static HRESULT parse_display_name(IAssemblyNameImpl *name, LPCWSTR szAssemblyNam
     if (!str)
         return E_OUTOFMEMORY;
 
-    ptr = strstrW(str, separator);
+    ptr = strchrW(str, ',');
     if (ptr) *ptr = '\0';
+
+    /* no ',' but ' ' only */
+    if( !ptr && strchrW(str, ' ') )
+    {
+        hr = FUSION_E_INVALID_NAME;
+        goto done;
+    }
+
     name->name = strdupW(str);
     if (!name->name)
         return E_OUTOFMEMORY;
diff --git a/dlls/fusion/tests/asmname.c b/dlls/fusion/tests/asmname.c
index 655f62f1158..170af235e66 100644
--- a/dlls/fusion/tests/asmname.c
+++ b/dlls/fusion/tests/asmname.c
@@ -868,12 +868,9 @@ static void test_CreateAssemblyNameObject(void)
     to_widechar(namestr, "wine PublicKeyToken=1234567890abcdef");
     name = (IAssemblyName *)0xdeadbeef;
     hr = pCreateAssemblyNameObject(&name, namestr, CANOF_PARSE_DISPLAY_NAME, NULL);
-    todo_wine
-    {
-        ok(hr == FUSION_E_INVALID_NAME,
-           "Expected FUSION_E_INVALID_NAME, got %08x\n", hr);
-        ok(name == (IAssemblyName *)0xdeadbeef, "Expected 0xdeadbeef, got %p\n", name);
-    }
+    ok(hr == FUSION_E_INVALID_NAME,
+       "Expected FUSION_E_INVALID_NAME, got %08x\n", hr);
+    ok(name == (IAssemblyName *)0xdeadbeef, "Expected 0xdeadbeef, got %p\n", name);
     if(SUCCEEDED(hr)) IAssemblyName_Release(name);
 
     /* no '=' */