diff --git a/Userland/Libraries/LibACPI/TableStream.cpp b/Userland/Libraries/LibACPI/TableStream.cpp
index 7c4ad7bd8cf..7ca6b990ba8 100644
--- a/Userland/Libraries/LibACPI/TableStream.cpp
+++ b/Userland/Libraries/LibACPI/TableStream.cpp
@@ -8,6 +8,10 @@
 #include <LibACPI/OpcodeFilters.h>
 #include <LibACPI/TableStream.h>
 
+#ifdef KERNEL
+#    define warnln dbgln
+#endif
+
 namespace ACPI::AML {
 
 // https://uefi.org/specs/ACPI/6.6/20_AML_Specification.html#defblockheader