diff --git a/src/plugins/hunspell/hunspellclient.h b/src/plugins/hunspell/hunspellclient.h
--- a/src/plugins/hunspell/hunspellclient.h
+++ b/src/plugins/hunspell/hunspellclient.h
@@ -53,6 +53,7 @@
     }
 
 private:
+    QString checkForHunspellRCC();
     QMap<QString, QString> m_languagePaths;
 };
 
diff --git a/src/plugins/hunspell/hunspellclient.cpp b/src/plugins/hunspell/hunspellclient.cpp
--- a/src/plugins/hunspell/hunspellclient.cpp
+++ b/src/plugins/hunspell/hunspellclient.cpp
@@ -26,6 +26,7 @@
 #include <QString>
 #include <QCoreApplication>
 #include <QStandardPaths>
+#include <QResource>
 
 using namespace Sonnet;
 
@@ -61,6 +62,11 @@
     maybeAddPath(QStringLiteral("/usr/share/myspell/"));
 #endif
 
+    const QString hunspellRCC = checkForHunspellRCC();
+    if (!hunspellRCC.isEmpty()) {
+        maybeAddPath(hunspellRCC);
+    }
+
     for (const QString &dirString : dirList) {
         QDir dir(dirString);
         for (const QFileInfo &dict : dir.entryInfoList({QStringLiteral("*.aff")}, QDir::Files)) {
@@ -85,3 +91,15 @@
 {
     return m_languagePaths.keys();
 }
+
+QString HunspellClient::checkForHunspellRCC()
+{
+    const QString hunspellRCC = QStandardPaths::locate(QStandardPaths::AppDataLocation, QStringLiteral("hunspell/hunspell.rcc"));
+    if (!hunspellRCC.isEmpty()) {
+        const QString subdir = QStringLiteral("/hunspell_rcc/");
+        if (QResource::registerResource(hunspellRCC, subdir)) {
+            return QString(QLatin1Char(':') + subdir);
+        }
+    }
+    return QString();
+}
diff --git a/src/plugins/hunspell/hunspelldict.h b/src/plugins/hunspell/hunspelldict.h
--- a/src/plugins/hunspell/hunspelldict.h
+++ b/src/plugins/hunspell/hunspelldict.h
@@ -24,6 +24,10 @@
 #include "spellerplugin_p.h"
 #include "hunspell.hxx"
 
+QT_BEGIN_NAMESPACE
+class QTemporaryDir;
+QT_END_NAMESPACE
+
 class HunspellDict : public Sonnet::SpellerPlugin
 {
 public:
@@ -43,6 +47,7 @@
 
     Hunspell *m_speller = nullptr;
     QTextCodec *m_codec = nullptr;
+    QTemporaryDir *m_tempDir = nullptr;
 };
 
 #endif
diff --git a/src/plugins/hunspell/hunspelldict.cpp b/src/plugins/hunspell/hunspelldict.cpp
--- a/src/plugins/hunspell/hunspelldict.cpp
+++ b/src/plugins/hunspell/hunspelldict.cpp
@@ -29,6 +29,7 @@
 #include <QStringBuilder>
 #include <QCoreApplication>
 #include <QStandardPaths>
+#include <QTemporaryDir>
 
 using namespace Sonnet;
 
@@ -44,6 +45,20 @@
     QString dictionary = path + QStringLiteral(".dic");
     QString aff = path + QStringLiteral(".aff");
 
+    if (path.startsWith(QLatin1Char(':'))) {
+        m_tempDir = new QTemporaryDir();
+        if (!m_tempDir->isValid()) {
+            qCWarning(SONNET_HUNSPELL) << "Failed to create QTemporaryDir";
+        }
+        QString newAffName = m_tempDir->path() + QStringLiteral("/aff");
+        QString newDictName = m_tempDir->path() + QStringLiteral("/dic");
+
+        QFile::copy(aff, newAffName);
+        QFile::copy(dictionary, newDictName);
+        aff = newAffName;
+        dictionary = newDictName;
+    }
+
     if (QFileInfo::exists(dictionary) && QFileInfo::exists(aff)) {
         m_speller
             = new Hunspell(aff.toLocal8Bit().constData(), dictionary.toLocal8Bit().constData());
@@ -80,12 +95,15 @@
         }
         userDicFile.close();
     }
-    qCDebug(SONNET_HUNSPELL) << "Created " << m_speller;
+    qCDebug(SONNET_HUNSPELL) << "Created " << m_speller << aff << dictionary;
 }
 
 HunspellDict::~HunspellDict()
 {
     delete m_speller;
+    if (m_tempDir) {
+        delete m_tempDir;
+    }
 }
 
 QByteArray HunspellDict::toDictEncoding(const QString &word) const