diff --git a/lib/LinkRawWireless.hpp b/lib/LinkRawWireless.hpp
index 0b6b2a7..b2d1a78 100644
--- a/lib/LinkRawWireless.hpp
+++ b/lib/LinkRawWireless.hpp
@@ -1146,6 +1146,13 @@ class LinkRawWireless {
           asyncCommand.direction == AsyncCommand::Direction::SENDING) {
         if (!acknowledge())
           return -4;
+
+#ifdef LINK_WIRELESS_PUT_ISR_IN_IWRAM
+#ifdef LINK_WIRELESS_ENABLE_NESTED_IRQ
+        Link::_REG_IME = 1;
+#endif
+#endif
+
         sendAsyncCommand(newData, _clockInversionSupport);
       } else if (_clockInversionSupport) {
         if (!reverseAcknowledge(asyncCommand.step ==
diff --git a/lib/LinkWireless.cpp b/lib/LinkWireless.cpp
index dd6305d..1fdedd4 100644
--- a/lib/LinkWireless.cpp
+++ b/lib/LinkWireless.cpp
@@ -6,7 +6,7 @@ LINK_CODE_IWRAM void LinkWireless::_onSerial() {
 #ifdef LINK_WIRELESS_ENABLE_NESTED_IRQ
   interrupt = true;
   LINK_BARRIER;
-  Link::_REG_IME = 1;
+  // (nested interrupts are enabled by LinkRawWireless::_onSerial(...))
 #endif
 
   __onSerial();