diff --git a/tools/rimage/config/mtl.toml b/tools/rimage/config/mtl.toml
index d85f797f627e..0a953e100cb8 100644
--- a/tools/rimage/config/mtl.toml
+++ b/tools/rimage/config/mtl.toml
@@ -44,7 +44,6 @@ length = "0x0"  # calculated by rimage
 
 [signed_pkg]
 name = "ADSP"
-partition_usage = "0x23"
 [[signed_pkg.module]]
 name = "ADSP.met"
 
diff --git a/tools/rimage/src/adsp_config.c b/tools/rimage/src/adsp_config.c
index ac196075a2b0..9a9423cbada7 100644
--- a/tools/rimage/src/adsp_config.c
+++ b/tools/rimage/src/adsp_config.c
@@ -1087,9 +1087,7 @@ static int parse_signed_pkg_ace_v1_5(const toml_table_t *toml, struct parse_ctx
 	if (ret < 0)
 		return ret;
 
-	out->partition_usage = parse_uint32_hex_key(signed_pkg, &ctx, "partition_usage", 0, &ret);
-	if (ret < 0)
-		return ret;
+	out->partition_usage = 0x20 + image->imr_type;
 
 	/* check everything parsed, expect 1 more array */
 	ctx.array_cnt += 1;
diff --git a/tools/rimage/src/rimage.c b/tools/rimage/src/rimage.c
index 735075c130cc..887dd85ed755 100644
--- a/tools/rimage/src/rimage.c
+++ b/tools/rimage/src/rimage.c
@@ -191,8 +191,6 @@ int main(int argc, char *argv[])
 	}
 
 	if (image.adsp->man_ace_v1_5) {
-		if (imr_type_override)
-			image.adsp->man_ace_v1_5->adsp_file_ext.imr_type = image.imr_type;
 		image.adsp->man_ace_v1_5->css.reserved0 = pv_bit;
 	}