diff --git a/tools/buildman/toolchain.py b/tools/buildman/toolchain.py
index b64338680e9f3a0da02671779f9f9f11e37e169d..e392035ea5be75b30114a80cb945fe1d68ec8901 100644
--- a/tools/buildman/toolchain.py
+++ b/tools/buildman/toolchain.py
@@ -103,7 +103,7 @@ class Toolchains:
         if not toolchains:
             print ("Warning: No tool chains - please add a [toolchain] section"
                  " to your buildman config file %s. See README for details" %
-                 config_fname)
+                 bsettings.config_fname)
 
         for name, value in toolchains:
             if '*' in value: