diff --git a/macros.ghc-os b/macros.ghc-os
index 69ddac8..9956a2c 100644
--- a/macros.ghc-os
+++ b/macros.ghc-os
@@ -4,8 +4,11 @@
 
 %ghc_without_dynamic 1
 
-# enable library documentation in doc subpkgs
+# enable library documentation in doc subpkgs (deprecated)
 %with_haddock 1
 
+%ghc_haddocks\
+%bcond haddock 1
+
 # %%{?_smp_ncpus_max:--jobs=%%{?_smp_ncpus_max}}
 %ghc_smp_mflags %{?_smp_mflags}