diff --git a/source-builder/pkg-config b/source-builder/pkg-config
index a10dc9b..c2378d6 100755
--- a/source-builder/pkg-config
+++ b/source-builder/pkg-config
@@ -69,7 +69,7 @@ if trace_src:
 
 def src(text):
     if srcfd:
-        srcfs.writelines(text)
+        srcfd.writelines(text)
 
 def log(s, lf = True):
     global trace, logfile, out