3 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/GF/Speech/GSL.hs b/src/compiler/GF/Speech/GSL.hs
index d9d6af0cc..a898a4bb5 100644
--- a/src/compiler/GF/Speech/GSL.hs
+++ b/src/compiler/GF/Speech/GSL.hs
@@ -7,6 +7,7 @@
 -----------------------------------------------------------------------------
 
 module GF.Speech.GSL (gslPrinter) where
+import Prelude hiding ((<>)) -- GHC 8.4.1 clash with Text.PrettyPrint
 
 --import GF.Data.Utilities
 import GF.Grammar.CFG
diff --git a/src/compiler/GF/Speech/JSGF.hs b/src/compiler/GF/Speech/JSGF.hs
index 25168dbc8..15f5ff69d 100644
--- a/src/compiler/GF/Speech/JSGF.hs
+++ b/src/compiler/GF/Speech/JSGF.hs
@@ -11,6 +11,7 @@
 -----------------------------------------------------------------------------
 
 module GF.Speech.JSGF (jsgfPrinter) where
+import Prelude hiding ((<>)) -- GHC 8.4.1 clash with Text.PrettyPrint
 
 --import GF.Data.Utilities
 import GF.Infra.Option
diff --git a/src/compiler/GF/Speech/SRGS_ABNF.hs b/src/compiler/GF/Speech/SRGS_ABNF.hs
index 75d206a0c..dc5c7bbd3 100644
--- a/src/compiler/GF/Speech/SRGS_ABNF.hs
+++ b/src/compiler/GF/Speech/SRGS_ABNF.hs
@@ -18,6 +18,7 @@
 -----------------------------------------------------------------------------
 
 module GF.Speech.SRGS_ABNF (srgsAbnfPrinter, srgsAbnfNonRecursivePrinter) where
+import Prelude hiding ((<>)) -- GHC 8.4.1 clash with Text.PrettyPrint
 
 --import GF.Data.Utilities
 import GF.Infra.Option