diff --git a/clash-prelude/src/Clash/Prelude/BlockRam.hs b/clash-prelude/src/Clash/Prelude/BlockRam.hs
index e196c8e730..718c253bb7 100644
--- a/clash-prelude/src/Clash/Prelude/BlockRam.hs
+++ b/clash-prelude/src/Clash/Prelude/BlockRam.hs
@@ -846,7 +846,7 @@ readNew (blockRam (0 :> 1 :> Nil))
      ... =>
      Signal dom addr -> Signal dom (Maybe (addr, a)) -> Signal dom a
 
-#elif __GLASGOW_HASKELL__ >= 906 && !defined(CLASH_MULTIPLE_HIDDEN)
+#elif __GLASGOW_HASKELL__ >= 902 && !defined(CLASH_MULTIPLE_HIDDEN)
 >>> :t readNew (blockRam (0 :> 1 :> Nil))
 readNew (blockRam (0 :> 1 :> Nil))
   :: ...