diff --git a/platforms/desktop-shared/nfd/nfd_cocoa.mm b/platforms/desktop-shared/nfd/nfd_cocoa.m
similarity index 100%
rename from platforms/desktop-shared/nfd/nfd_cocoa.mm
rename to platforms/desktop-shared/nfd/nfd_cocoa.m
diff --git a/platforms/macos/Makefile b/platforms/macos/Makefile
index a5860575..27d97ef2 100644
--- a/platforms/macos/Makefile
+++ b/platforms/macos/Makefile
@@ -1,6 +1,6 @@
 include ../desktop-shared/Makefile.sources
 
-SOURCES_CXX += $(DESKTOP_SRC_DIR)/nfd/nfd_cocoa.cpp
+SOURCES_C += $(DESKTOP_SRC_DIR)/nfd/nfd_cocoa.m
 LDFLAGS += -framework AppKit -framework UniformTypeIdentifiers
 
 include ../desktop-shared/Makefile.common