diff --git a/src/platform/apollolake/apollolake.x.in b/src/platform/apollolake/apollolake.x.in
index 23638fa19..28e071799 100644
--- a/src/platform/apollolake/apollolake.x.in
+++ b/src/platform/apollolake/apollolake.x.in
@@ -163,6 +163,7 @@ PROVIDE(_memmap_cacheattr_reset = _memmap_cacheattr_wbna_trapnull);
 
 _EXT_MAN_ALIGN_ = 16;
 EXTERN(ext_man_fw_ver)
+EXTERN(ext_man_cavs_config)
 
 SECTIONS
 {
diff --git a/src/platform/cannonlake/cannonlake.x.in b/src/platform/cannonlake/cannonlake.x.in
index a96769e28..2d0a26ba4 100644
--- a/src/platform/cannonlake/cannonlake.x.in
+++ b/src/platform/cannonlake/cannonlake.x.in
@@ -150,6 +150,7 @@ PROVIDE(_memmap_cacheattr_reset = _memmap_cacheattr_wbna_trapnull);
 
 _EXT_MAN_ALIGN_ = 16;
 EXTERN(ext_man_fw_ver)
+EXTERN(ext_man_cavs_config)
 
 SECTIONS
 {
diff --git a/src/platform/icelake/icelake.x.in b/src/platform/icelake/icelake.x.in
index a029ffd30..1cb758049 100644
--- a/src/platform/icelake/icelake.x.in
+++ b/src/platform/icelake/icelake.x.in
@@ -109,6 +109,7 @@ MEMORY
 
 _EXT_MAN_ALIGN_ = 16;
 EXTERN(ext_man_fw_ver)
+EXTERN(ext_man_cavs_config)
 
 PHDRS
 {
diff --git a/src/platform/suecreek/suecreek.x.in b/src/platform/suecreek/suecreek.x.in
index fdff60d39..a472a9b4d 100644
--- a/src/platform/suecreek/suecreek.x.in
+++ b/src/platform/suecreek/suecreek.x.in
@@ -157,6 +157,7 @@ PROVIDE(_memmap_cacheattr_reset = _memmap_cacheattr_sue_creek);
 
 _EXT_MAN_ALIGN_ = 16;
 EXTERN(ext_man_fw_ver)
+EXTERN(ext_man_cavs_config)
 
 SECTIONS
 {
diff --git a/src/platform/tigerlake/tigerlake.x.in b/src/platform/tigerlake/tigerlake.x.in
index 6fd843b58..7e7bed86b 100644
--- a/src/platform/tigerlake/tigerlake.x.in
+++ b/src/platform/tigerlake/tigerlake.x.in
@@ -170,6 +170,7 @@ PROVIDE(_memmap_cacheattr_reset = _memmap_cacheattr_wbna_trapnull);
 
 _EXT_MAN_ALIGN_ = 16;
 EXTERN(ext_man_fw_ver)
+EXTERN(ext_man_cavs_config)
 EXTERN(_LpsramHeader)
 EXTERN(_AltResetVector)