diff --git a/src/core/lib/iomgr/endpoint_cfstream.cc b/src/core/lib/iomgr/endpoint_cfstream.cc
index 180a61b841e..987f2d270b6 100644
--- a/src/core/lib/iomgr/endpoint_cfstream.cc
+++ b/src/core/lib/iomgr/endpoint_cfstream.cc
@@ -132,7 +132,7 @@ static void CallReadCb(CFStreamEndpoint* ep, grpc_error* error) {
   grpc_closure* cb = ep->read_cb;
   ep->read_cb = nullptr;
   ep->read_slices = nullptr;
-  ExecCtx::Run(DEBUG_LOCATION, cb, error);
+  grpc_core::ExecCtx::Run(DEBUG_LOCATION, cb, error);
 }
 
 static void CallWriteCb(CFStreamEndpoint* ep, grpc_error* error) {
@@ -145,7 +145,7 @@ static void CallWriteCb(CFStreamEndpoint* ep, grpc_error* error) {
   grpc_closure* cb = ep->write_cb;
   ep->write_cb = nullptr;
   ep->write_slices = nullptr;
-  ExecCtx::Run(DEBUG_LOCATION, cb, error);
+  grpc_core::ExecCtx::Run(DEBUG_LOCATION, cb, error);
 }
 
 static void ReadAction(void* arg, grpc_error* error) {
diff --git a/src/core/lib/iomgr/tcp_client_cfstream.cc b/src/core/lib/iomgr/tcp_client_cfstream.cc
index a4596246e6a..23d8c0c0089 100644
--- a/src/core/lib/iomgr/tcp_client_cfstream.cc
+++ b/src/core/lib/iomgr/tcp_client_cfstream.cc
@@ -96,7 +96,7 @@ static void OnAlarm(void* arg, grpc_error* error) {
   } else {
     grpc_error* error =
         GRPC_ERROR_CREATE_FROM_STATIC_STRING("connect() timed out");
-    ExecCtx::Run(DEBUG_LOCATION, closure, error);
+    grpc_core::ExecCtx::Run(DEBUG_LOCATION, closure, error);
   }
 }
 
@@ -137,7 +137,7 @@ static void OnOpen(void* arg, grpc_error* error) {
       GRPC_ERROR_REF(error);
     }
     gpr_mu_unlock(&connect->mu);
-    ExecCtx::Run(DEBUG_LOCATION, closure, error);
+    grpc_core::ExecCtx::Run(DEBUG_LOCATION, closure, error);
   }
 }