diff --git a/Kbuild b/Kbuild
index e84a3ec..08beddd 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2341,6 +2341,9 @@
 #Enable spectral support
 cppflags-$(CONFIG_ATH_SUPPORT_SPECTRAL) += -DATH_SUPPORT_SPECTRAL
 
+#Enable legacy pktlog
+cppflags-$(CONFIG_PKTLOG_LEGACY) += -DPKTLOG_LEGACY
+
 #Enable WDI Event support
 cppflags-$(CONFIG_WDI_EVENT_ENABLE) += -DWDI_EVENT_ENABLE