diff --git a/wireshark.changes b/wireshark.changes
index 401623f..a247e99 100644
--- a/wireshark.changes
+++ b/wireshark.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Mar 26 15:51:29 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add -DGLIB_VERSION_MIN_REQUIRED=0x024200 to CFLAGS/CXXFLAGS: Work
+  around glib changes in version 2.67 by fixing API to to 2.42.
+
 -------------------------------------------------------------------
 Thu Mar 11 07:40:14 UTC 2021 - Robert Frohl <rfrohl@suse.com>
 
diff --git a/wireshark.spec b/wireshark.spec
index 27b5b3d..83deb94 100644
--- a/wireshark.spec
+++ b/wireshark.spec
@@ -176,6 +176,8 @@ sed -i 's/^Icon=wireshark.png$/Icon=wireshark/' wireshark*.desktop
 %patch10 -p1
 
 %build
+export CFLAGS="%{optflags} -DGLIB_VERSION_MIN_REQUIRED=0x024200"
+export CXXFLAGS="%{optflags} -DGLIB_VERSION_MIN_REQUIRED=0x024200"
 %cmake -DCMAKE_INSTALL_LIBDIR='%{_lib}/'
 %if 0%{?is_opensuse}
 %cmake_build