diff --git a/pcre2.spec b/pcre2.spec
index 9375362..3458910 100644
--- a/pcre2.spec
+++ b/pcre2.spec
@@ -100,9 +100,11 @@ Patch16:    pcre2-10.33-Add-underflow-check-in-JIT.patch
 # Fix a use after free when freeing JIT memory, upstream bug #2453,
 # in upstream after 10.33
 Patch17:    pcre2-10.33-Fix-use-after-free-and-compilation-error-in-JIT.patch
-# 1/2 Fix thread-safeness in regexec(), in upstream after 10.33
+# 1/2 Fix thread-safeness in regexec(), upstream bug #2447,
+# in upstream after 10.33
 Patch18:    pcre2-10.33-Ensure-regexec-is-thread-safe-to-avoid-sanitizer-war.patch
-# 2/2 Fix thread-safeness in regexec(), in upstream after 10.33
+# 2/2 Fix thread-safeness in regexec(), upstream bug #2447,
+# in upstream after 10.33
 Patch19:    pcre2-10.33-Fix-error-offset-bug-introduced-at-1176.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
@@ -301,7 +303,7 @@ make %{?_smp_mflags} check VERBOSE=yes
 %changelog
 * Tue Oct 29 2019 Petr Pisar <ppisar@redhat.com> - 10.33-15
 - Fix a use after free when freeing JIT memory (upstream bug #2453)
-- Fix thread-safeness in regexec()
+- Fix thread-safeness in regexec() (upstream bug #2447)
 
 * Mon Sep 09 2019 Petr Pisar <ppisar@redhat.com> - 10.33-14
 - Fix a crash in JIT match when a subject has a zero length and an invalid