diff --git a/im/config/mozconfigs/linux/mozconfig b/im/config/mozconfigs/linux/mozconfig
index fdfdbe515d..5ef6eb2193 100644
--- a/im/config/mozconfigs/linux/mozconfig
+++ b/im/config/mozconfigs/linux/mozconfig
@@ -5,6 +5,9 @@
 no_tooltool=1
 . $topsrcdir/build/unix/mozconfig.linux
 
+# If this isn't set, the symbol upload will happen without the API.
+unset SOCORRO_SYMBOL_UPLOAD_TOKEN_FILE
+
 export MOZILLA_OFFICIAL=1
 mk_add_options MOZILLA_OFFICIAL=1
 
diff --git a/im/config/mozconfigs/linux/mozconfig-release b/im/config/mozconfigs/linux/mozconfig-release
index 6f8c8e547e..b4043b92ba 100644
--- a/im/config/mozconfigs/linux/mozconfig-release
+++ b/im/config/mozconfigs/linux/mozconfig-release
@@ -5,6 +5,9 @@
 no_tooltool=1
 . $topsrcdir/build/unix/mozconfig.linux
 
+# If this isn't set, the symbol upload will happen without the API.
+unset SOCORRO_SYMBOL_UPLOAD_TOKEN_FILE
+
 export MOZILLA_OFFICIAL=1
 mk_add_options MOZILLA_OFFICIAL=1