diff --git a/libgimpbase/gimputils.c b/libgimpbase/gimputils.c
index 745e692903..d40b4f23f5 100644
--- a/libgimpbase/gimputils.c
+++ b/libgimpbase/gimputils.c
@@ -1252,6 +1252,11 @@ gimp_stack_trace_print (const gchar *prog_name,
 
       waitpid (pid, &status, 0);
 
+#ifdef PR_SET_PTRACER
+      /* Clear ptrace permission set above */
+      prctl (PR_SET_PTRACER, 0, 0, 0, 0);
+#endif
+
       while ((read_n = read (out_fd[0], buffer, 256)) > 0)
         {
           /* It's hard to know if the debugger was found since it