diff --git a/src/Streamly/Internal/FileSystem/Event/Darwin.m b/src/Streamly/Internal/FileSystem/Event/Darwin.c
similarity index 100%
rename from src/Streamly/Internal/FileSystem/Event/Darwin.m
rename to src/Streamly/Internal/FileSystem/Event/Darwin.c
diff --git a/streamly.cabal b/streamly.cabal
index 5706fb0b17..55c787972a 100644
--- a/streamly.cabal
+++ b/streamly.cabal
@@ -442,7 +442,7 @@ library
 
     if os(darwin)
           include-dirs:  src/Streamly/Internal
-          c-sources: src/Streamly/Internal/FileSystem/Event/Darwin.m
+          c-sources: src/Streamly/Internal/FileSystem/Event/Darwin.c
           exposed-modules: Streamly.Internal.FileSystem.Event.Darwin
 
     if os(linux)