diff --git a/src/api/python/z3/z3.py b/src/api/python/z3/z3.py
index 1a6e9c43f..0c75edbf6 100644
--- a/src/api/python/z3/z3.py
+++ b/src/api/python/z3/z3.py
@@ -9394,7 +9394,7 @@ def _mk_fp_unary_norm(f, a, ctx):
     [a] = _coerce_fp_expr_list([a], ctx)
     if z3_debug():
         _z3_assert(is_fp(a), "First argument must be a Z3 floating-point expression")
-    return FPRef(f(ctx.ref(), a.as_ast()), ctx)
+    return BoolRef(f(ctx.ref(), a.as_ast()), ctx)
 
 def _mk_fp_unary_pred(f, a, ctx):
     ctx = _get_ctx(ctx)