diff --git a/Core/Src/TMP144.c b/Core/Src/TMP144.c
index eefd167..b9aae18 100644
--- a/Core/Src/TMP144.c
+++ b/Core/Src/TMP144.c
@@ -154,14 +154,16 @@ HAL_StatusTypeDef tmp144_recv_temps(TMP144Bus* bus) {
     return HAL_ERROR;
   }
 
+  size_t temperatures_offset =
+      (bus == &tmp144_bus_busbar) ? 0 : N_TEMP_SENSORS / 2;
+
   bus->state = TMP144_IDLE;
   size_t headerlen = sizeof(TMP144_SEQ_READ_TEMPS);
   if (memcmp(bus->rxbuf, TMP144_SEQ_READ_TEMPS, headerlen) != 0) {
+    memset(&temperatures[temperatures_offset], 0, sizeof(temperatures) / 2);
     return HAL_ERROR;
   }
 
-  size_t temperatures_offset =
-      (bus == &tmp144_bus_busbar) ? 0 : N_TEMP_SENSORS / 2;
   for (size_t i = 0; i < bus->n_sensors; i++) {
     size_t buf_offset = headerlen + 2 * i;
     uint16_t temp =