diff --git a/thunderbird.spec b/thunderbird.spec
index 6dde4e4..764682d 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -19,7 +19,7 @@ function dist_to_rhel_minor(str, start)
   end
   match = string.match(str, ".el8")
   if match then
-     return 7
+     return 9
   end
   return -1
 end}
@@ -591,7 +591,7 @@ echo "use_rustts            %{?use_rustts}"
 %patch77 -p1 -b .mozilla-1775202
 
 %patch73 -p1 -b .build-ascii-decode-fail-rhel7
-%if 0%{?rhel} == 7
+%if 0%{?rhel} == 7 || (0%{?rhel} == 8 && %{rhel_minor_version} >= 9)
 %patch78 -p1 -b .build-rhel7-lower-node-min-version
 %endif