diff --git a/src/libs/utils/hostosinfo.h b/src/libs/utils/hostosinfo.h
index 7626e3caccf..9720b2ecec1 100644
--- a/src/libs/utils/hostosinfo.h
+++ b/src/libs/utils/hostosinfo.h
@@ -72,12 +72,12 @@ public:
                 : OsSpecificAspects::fileNameCaseSensitivity(hostOs());
     }
 
-    static QChar pathListSeparator()
+    static constexpr QChar pathListSeparator()
     {
         return OsSpecificAspects::pathListSeparator(hostOs());
     }
 
-    static Qt::KeyboardModifier controlModifier()
+    static constexpr Qt::KeyboardModifier controlModifier()
     {
         return OsSpecificAspects::controlModifier(hostOs());
     }
diff --git a/src/libs/utils/osspecificaspects.h b/src/libs/utils/osspecificaspects.h
index 2d7b55e12d4..d5f331efdfa 100644
--- a/src/libs/utils/osspecificaspects.h
+++ b/src/libs/utils/osspecificaspects.h
@@ -24,22 +24,22 @@ inline QString withExecutableSuffix(OsType osType, const QString &executable)
     return finalName;
 }
 
-inline Qt::CaseSensitivity fileNameCaseSensitivity(OsType osType)
+constexpr Qt::CaseSensitivity fileNameCaseSensitivity(OsType osType)
 {
     return osType == OsTypeWindows || osType == OsTypeMac ? Qt::CaseInsensitive : Qt::CaseSensitive;
 }
 
-inline Qt::CaseSensitivity envVarCaseSensitivity(OsType osType)
+constexpr Qt::CaseSensitivity envVarCaseSensitivity(OsType osType)
 {
     return fileNameCaseSensitivity(osType);
 }
 
-inline QChar pathListSeparator(OsType osType)
+constexpr QChar pathListSeparator(OsType osType)
 {
     return QLatin1Char(osType == OsTypeWindows ? ';' : ':');
 }
 
-inline Qt::KeyboardModifier controlModifier(OsType osType)
+constexpr Qt::KeyboardModifier controlModifier(OsType osType)
 {
     return osType == OsTypeMac ? Qt::MetaModifier : Qt::ControlModifier;
 }