diff --git a/compatibility_matrices/compatibility_matrix.5.xml b/compatibility_matrices/compatibility_matrix.5.xml
index 1b051f5..e772b6f 100644
--- a/compatibility_matrices/compatibility_matrix.5.xml
+++ b/compatibility_matrices/compatibility_matrix.5.xml
@@ -371,6 +371,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.radio</name>
+        <version>1.4</version>
         <version>1.5</version>
         <interface>
             <name>IRadio</name>