diff --git a/kerfuffle/pluginmanager.cpp b/kerfuffle/pluginmanager.cpp
index ef379a844f24d62bffe09ada0f8a2a2c26ae25f3..50b1f7a8afa7718389e1759dd9a53d3818c9c438 100644
--- a/kerfuffle/pluginmanager.cpp
+++ b/kerfuffle/pluginmanager.cpp
@@ -122,8 +122,9 @@ QStringList PluginManager::supportedMimeTypes(MimeSortingMode mode) const
         supported.remove(QStringLiteral("application/x-lz4-compressed-tar"));
     }
 
+    static bool s_libarchiveHasLzo = libarchiveHasLzo();
     // Remove entry for lzo-compressed tar if libarchive not linked against lzo and lzop executable not found in path.
-    if (!libarchiveHasLzo() && QStandardPaths::findExecutable(QStringLiteral("lzop")).isEmpty()) {
+    if (!s_libarchiveHasLzo && QStandardPaths::findExecutable(QStringLiteral("lzop")).isEmpty()) {
         supported.remove(QStringLiteral("application/x-tzo"));
     }