diff --git a/artiq/firmware/ksupport/rtio.rs b/artiq/firmware/ksupport/rtio.rs
index 5ce17850f..a83a45ec1 100644
--- a/artiq/firmware/ksupport/rtio.rs
+++ b/artiq/firmware/ksupport/rtio.rs
@@ -112,7 +112,6 @@ mod imp {
             }
 
             if status & RTIO_I_STATUS_OVERFLOW != 0 {
-                csr::rtio::i_overflow_reset_write(1);
                 raise!("RTIOOverflow",
                     "RTIO input overflow on channel {0}",
                     channel as i64, 0, 0);
@@ -141,7 +140,6 @@ mod imp {
             }
 
             if status & RTIO_I_STATUS_OVERFLOW != 0 {
-                csr::rtio::i_overflow_reset_write(1);
                 raise!("RTIOOverflow",
                     "RTIO input overflow on channel {0}",
                     channel as i64, 0, 0);
@@ -167,7 +165,6 @@ mod imp {
             }
 
             if status & RTIO_I_STATUS_OVERFLOW != 0 {
-                csr::rtio::i_overflow_reset_write(1);
                 raise!("RTIOOverflow",
                     "RTIO input overflow on channel {0}",
                     channel as i64, 0, 0);
diff --git a/artiq/gateware/rtio/cri.py b/artiq/gateware/rtio/cri.py
index 0de13b8d1..c735b9e5f 100644
--- a/artiq/gateware/rtio/cri.py
+++ b/artiq/gateware/rtio/cri.py
@@ -79,7 +79,6 @@ class KernelInitiator(Module, AutoCSR):
         self.i_data = CSRStatus(32)
         self.i_timestamp = CSRStatus(64)
         self.i_status = CSRStatus(4)
-        self.i_overflow_reset = CSR()
 
         self.counter = CSRStatus(64)
         self.counter_update = CSR()