diff --git a/bison.changes b/bison.changes
index b7680a1..05487df 100644
--- a/bison.changes
+++ b/bison.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Feb 16 06:45:57 UTC 2019 - Bernhard Wiedemann <bwiedemann@suse.com>
+
+- Run profiling without parallelism for reproducible build results
+  (boo#1040589)
+
 -------------------------------------------------------------------
 Mon Feb 04 17:11:14 UTC 2019 - seanlew@opensuse.org
 
diff --git a/bison.spec b/bison.spec
index 553567b..5ce8c93 100644
--- a/bison.spec
+++ b/bison.spec
@@ -54,7 +54,8 @@ Bison is a parser generator similar to yacc(1).
   gl_cv_func_printf_infinite_long_double=yes
 %if 0%{?do_profiling}
   make %{?_smp_mflags} CFLAGS="%{optflags} %{cflags_profile_generate}" V=1
-  make %{?_smp_mflags} CFLAGS="%{optflags}" check
+  # non-parallel profiling for reproducible results https://bugzilla.opensuse.org/show_bug.cgi?id=1040589
+  make CFLAGS="%{optflags}" check
   make %{?_smp_mflags} clean
   make %{?_smp_mflags} CFLAGS="%{optflags} %{cflags_profile_feedback}" V=1
 %else