diff --git a/qualtran/bloqs/basic_gates/rotation.py b/qualtran/bloqs/basic_gates/rotation.py
index 3acb1681d..5fdf030a4 100644
--- a/qualtran/bloqs/basic_gates/rotation.py
+++ b/qualtran/bloqs/basic_gates/rotation.py
@@ -159,8 +159,8 @@ def adjoint(self) -> 'ZPowGate':
 
     def wire_symbol(self, reg: Optional[Register], idx: Tuple[int, ...] = tuple()) -> 'WireSymbol':
         if reg is None:
-            return Text('')
-        return TextBox(f'Z^{self.exponent}')
+            return Text(f'Z^{self.exponent}')
+        return TextBox("Z")
 
     def __str__(self):
         return f'Z**{self.exponent}'
diff --git a/qualtran/symbolics/math_funcs.py b/qualtran/symbolics/math_funcs.py
index e55c1725b..312b8becd 100644
--- a/qualtran/symbolics/math_funcs.py
+++ b/qualtran/symbolics/math_funcs.py
@@ -94,7 +94,7 @@ def sabs(x: sympy.Expr) -> sympy.Expr: ...
 
 
 def sabs(x: SymbolicFloat) -> SymbolicFloat:
-    return cast(SymbolicFloat, abs(x))
+    return cast(SymbolicFloat, abs(sympy.pi if isinstance(x, sympy.Symbol) else x))
 
 
 @overload