diff --git a/src/testlib/qtestcrashhandler.cpp b/src/testlib/qtestcrashhandler.cpp
index c2a10dedf64..a9a8b37884a 100644
--- a/src/testlib/qtestcrashhandler.cpp
+++ b/src/testlib/qtestcrashhandler.cpp
@@ -548,10 +548,10 @@ FatalSignalHandler::~FatalSignalHandler()
 
     for (size_t i = 0; i < fatalSignals.size(); ++i) {
         struct sigaction &act = oldActions()[i];
-        if (act.sa_flags == 0 && act.sa_handler == SIG_DFL)
-            continue; // Already the default
         if (sigaction(fatalSignals[i], nullptr, &action))
             continue; // Failed to query present handler
+        if (action.sa_flags == 0 && action.sa_handler == SIG_DFL)
+            continue; // Already the default
         if (isOurs(action))
             sigaction(fatalSignals[i], &act, nullptr);
     }