diff --git a/src/core/Config.cpp b/src/core/Config.cpp
index 9edd6702..97420fd4 100644
--- a/src/core/Config.cpp
+++ b/src/core/Config.cpp
@@ -108,6 +108,8 @@ void Config::createTempFileInstance()
 {
     Q_ASSERT(!m_instance);
     QTemporaryFile* tmpFile = new QTemporaryFile(qApp);
-    tmpFile->open();
+    bool openResult = tmpFile->open();
+    Q_ASSERT(openResult);
+    Q_UNUSED(openResult);
     m_instance = new Config(tmpFile->fileName(), tmpFile);
 }
diff --git a/src/format/KeePass2XmlWriter.cpp b/src/format/KeePass2XmlWriter.cpp
index 189887d6..d18f6d56 100644
--- a/src/format/KeePass2XmlWriter.cpp
+++ b/src/format/KeePass2XmlWriter.cpp
@@ -176,6 +176,7 @@ void KeePass2XmlWriter::writeBinaries()
 
             qint64 bytesWritten = compressor.write(i.key());
             Q_ASSERT(bytesWritten == i.key().size());
+            Q_UNUSED(bytesWritten);
             compressor.close();
 
             buffer.seek(0);