diff --git a/src/testlib/qtestcase.cpp b/src/testlib/qtestcase.cpp
index 858475f3963..7dc846db4d9 100644
--- a/src/testlib/qtestcase.cpp
+++ b/src/testlib/qtestcase.cpp
@@ -113,7 +113,7 @@ static void stackTrace()
     char cmd[512];
     qsnprintf(cmd, 512, "gdb --pid %d 2>/dev/null <<EOF\n"
                          "set prompt\n"
-                         "thread apply all where\n"
+                         "thread apply all where full\n"
                          "detach\n"
                          "quit\n"
                          "EOF\n",