diff --git a/source/main.cpp b/source/main.cpp
index 127bef8..917a645 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -182,6 +182,7 @@ void setup() {
   // Too small crashes just as hard as too large. Floor is 1536.
   Serial.print("[BLE] ATT table: "); Serial.print(ATT_TABLE_SIZE); Serial.println(" bytes");
   Bluefruit.configAttrTableSize(ATT_TABLE_SIZE);
+  Bluefruit.configPrphBandwidth(BANDWIDTH_MAX);  // Raise MTU so 24-byte telemetry fits in one notify
 
   Bluefruit.begin(1, 0);
   Bluefruit.setTxPower(4);