diff --git a/firefox.spec b/firefox.spec
index 7dbefa2..65ec592 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -12,7 +12,7 @@
 %define system_cairo      0
 
 # Use system libvpx?
-%if 0%{?fedora} > 22
+%if 0%{?fedora} > 23
 %define system_libvpx      1
 %else
 %define system_libvpx      0