diff --git a/qcom/sdxlemur-1024mb.dtsi b/qcom/sdxlemur-1024mb.dtsi
index 86fae265cfbd..e7985b5815af 100644
--- a/qcom/sdxlemur-1024mb.dtsi
+++ b/qcom/sdxlemur-1024mb.dtsi
@@ -7,3 +7,9 @@
 &access_control_mem {
 	reg = <0x8fd80000 0x80000>;
 };
+
+&reserved_memory {
+	audio_heap_mem: audio_mem_region@8c000000 {
+		reg = <0x8c000000 0x400000>;
+	};
+};