diff --git a/polymer/synthesis.sh b/polymer/synthesis.sh
index 6de5a9363..2ce3aa02b 100755
--- a/polymer/synthesis.sh
+++ b/polymer/synthesis.sh
@@ -14,7 +14,7 @@ clean=veryclean
 # the following file paths are relative to $source
 targets=( eduke32$exe mapster32$exe )
 package=package
-not_src_packaged=( psd $package/ebacktrace1.dll $package/ebacktrace1-64.dll )
+not_src_packaged=( $package/ebacktrace1.dll $package/ebacktrace1-64.dll )
 
 # group that owns the resulting packages
 group=dukeworld