diff --git a/include/util/dicontheme.h b/include/util/dicontheme.h
index abcb08c..c48a79b 100644
--- a/include/util/dicontheme.h
+++ b/include/util/dicontheme.h
@@ -17,7 +17,8 @@ namespace DIconTheme
     enum Option {
         DontFallbackToQIconFromTheme = 1 << 0,
         IgnoreBuiltinIcons = 1 << 1,
-        IgnoreDciIcons = 1 << 2
+        IgnoreDciIcons = 1 << 2,
+        DisableIconCache = 1 << 3
     };
     Q_DECLARE_FLAGS(Options, Option)
 
diff --git a/src/util/dicontheme.cpp b/src/util/dicontheme.cpp
index 7e96ab4..3fe7033 100644
--- a/src/util/dicontheme.cpp
+++ b/src/util/dicontheme.cpp
@@ -186,10 +186,12 @@ QIcon DIconTheme::Cached::findQIcon(const QString &iconName, Options options, co
     }
 
     auto newIcon = new QIcon(DIconTheme::findQIcon(iconName, options));
-    data->cache.insert(cacheKey, newIcon);
 
-    if (newIcon->isNull())
+    if (newIcon->isNull()) {
         return fallback;
+    } else {
+        data->cache.insert(cacheKey, newIcon);
+    }
 
     return *newIcon;
 }
diff --git a/src/util/private/diconproxyengine.cpp b/src/util/private/diconproxyengine.cpp
index 707983e..6eceaa6 100644
--- a/src/util/private/diconproxyengine.cpp
+++ b/src/util/private/diconproxyengine.cpp
@@ -226,9 +226,12 @@ void DIconProxyEngine::ensureEngine()
         return;
 
     static QMap<QString, QSet<QString>> nonCache;
-    const auto it = nonCache.find(theme);
-    if (it != nonCache.end() && it->contains(m_iconName))
-        return;
+    if (Q_UNLIKELY(!m_option.testFlag(DIconTheme::DisableIconCache)))
+    {
+        const auto it = nonCache.find(theme);
+        if (it != nonCache.end() && it->contains(m_iconName))
+            return;
+    }
 
     if (m_iconEngine) {
         // dci => dci
@@ -271,7 +274,7 @@ void DIconProxyEngine::ensureEngine()
         m_iconEngine = createXdgProxyIconEngine(m_iconName);
     }
 #endif
-    if (!m_iconEngine ) {
+    if (!m_iconEngine && !nonCache[theme].contains(m_iconName)) {
         qErrnoWarning("create icon [%s] engine failed.[theme:%s] nonCache[theme].size[%d]",
                       m_iconName.toUtf8().data(),
                       theme.toUtf8().data(), nonCache[theme].size());