diff --git a/src/plugins/qbsprojectmanager/qbsproject.cpp b/src/plugins/qbsprojectmanager/qbsproject.cpp
index b1402e70f2f..25e49a5d908 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.cpp
+++ b/src/plugins/qbsprojectmanager/qbsproject.cpp
@@ -794,7 +794,9 @@ static void getExpandedCompilerFlags(QStringList &cFlags, QStringList &cxxFlags,
         cFlags = cxxFlags = commonFlags;
 
         const auto cxxLanguageVersion = arrayToStringList(getCppProp("cxxLanguageVersion"));
-        if (cxxLanguageVersion.contains("c++20"))
+        if (cxxLanguageVersion.contains("c++23"))
+            cxxFlags << "-std=c++2b";
+        else if (cxxLanguageVersion.contains("c++20"))
             cxxFlags << "-std=c++20";
         else if (cxxLanguageVersion.contains("c++17"))
             cxxFlags << "-std=c++17";
@@ -850,9 +852,12 @@ static void getExpandedCompilerFlags(QStringList &cFlags, QStringList &cxxFlags,
         cxxFlags << "/TP";
         if (!enableRtti.isUndefined())
             cxxFlags << QLatin1String(enableRtti.toBool() ? "/GR" : "/GR-");
-        if (getCppProp("cxxLanguageVersion").toArray().contains("c++20"))
+        const QJsonArray cxxLanguageVersion = getCppProp("cxxLanguageVersion").toArray();
+        if (cxxLanguageVersion.contains("c++23"))
+            cxxFlags << "/std:c++latest";
+        else if (cxxLanguageVersion.contains("c++20"))
             cxxFlags << "/std:c++20";
-        else if (getCppProp("cxxLanguageVersion").toArray().contains("c++17"))
+        else if (cxxLanguageVersion.contains("c++17"))
             cxxFlags << "/std:c++17";
     }
 }