diff --git a/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h b/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h
index 15db03448..525357253 100644
--- a/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h
+++ b/arch/cpu/cc26xx-cc13xx/cc13xx-cc26xx-def.h
@@ -85,6 +85,11 @@
 #define TSCH_CONF_CHANNEL_SCAN_DURATION (CLOCK_SECOND / 10)
 #endif
 
+/* Increase this from the default 100 to improve TSCH association speed on this platform */
+#ifndef TSCH_CONF_ASSOCIATION_POLL_FREQUENCY
+#define TSCH_CONF_ASSOCIATION_POLL_FREQUENCY 1000
+#endif
+
 /* Slightly reduce the TSCH guard time (from 2200 usec to 1800 usec) to make sure
  * the CC26xx radio has sufficient time to start up. */
 #ifndef TSCH_CONF_RX_WAIT