diff --git a/examples/platforms/efr32/src/radio.c b/examples/platforms/efr32/src/radio.c
index f99d8664a..267dd1d0f 100644
--- a/examples/platforms/efr32/src/radio.c
+++ b/examples/platforms/efr32/src/radio.c
@@ -113,7 +113,7 @@ static otRadioState  sState        = OT_RADIO_STATE_DISABLED;
 enum
 {
     ACKED_WITH_FP_MATCH_LENGTH = 1 + IEEE802154_MAX_MHR_LENGTH, // PHR and MHR
-    ACKED_WITH_FP_SLOTS = 16, // maximum number of Data Request packets in the RX FIFO. Length should be a power of 2.
+    ACKED_WITH_FP_SLOTS = 32, // maximum number of Data Request packets in the RX FIFO. Length should be a power of 2.
 };
 
 typedef struct efr32AckedWithFP