diff --git a/src/gui/text/coretext/qcoretextfontdatabase.mm b/src/gui/text/coretext/qcoretextfontdatabase.mm
index 61c662cd459..7307595bd9b 100644
--- a/src/gui/text/coretext/qcoretextfontdatabase.mm
+++ b/src/gui/text/coretext/qcoretextfontdatabase.mm
@@ -905,7 +905,7 @@ void QCoreTextFontDatabase::populateThemeFonts()
 
             auto addFontVariants = [&](CTFontDescriptorRef descriptor) {
                 QCFType<CFArrayRef> matchingDescriptors = CTFontDescriptorCreateMatchingFontDescriptors(descriptor, nullptr);
-                const int matchingDescriptorsCount = CFArrayGetCount(matchingDescriptors);
+                const int matchingDescriptorsCount = matchingDescriptors ? CFArrayGetCount(matchingDescriptors) : 0;
                 qCDebug(lcQpaFonts) << "Enumerating font variants based on" << id(descriptor)
                     << "resulted in" << matchingDescriptorsCount << "matching descriptors"
                     << matchingDescriptors.as<NSArray*>();