diff --git a/lib/spack/spack/util/unparse/unparser.py b/lib/spack/spack/util/unparse/unparser.py
index 8ca4cd57a3..13da43aa98 100644
--- a/lib/spack/spack/util/unparse/unparser.py
+++ b/lib/spack/spack/util/unparse/unparser.py
@@ -554,9 +554,7 @@ def visit_FormattedValue(self, node):
 
     def _fstring_JoinedStr(self, node, write):
         for value in node.values:
-            print("   ", value)
             meth = getattr(self, "_fstring_" + type(value).__name__)
-            print(meth)
             meth(value, write)
 
     def _fstring_Str(self, node, write):