diff --git a/makemsvc/jdll/makefile.win b/makemsvc/jdll/makefile.win
index ce4de2266..3e8bf8223 100644
--- a/makemsvc/jdll/makefile.win
+++ b/makemsvc/jdll/makefile.win
@@ -315,7 +315,7 @@ LD=lld-link
 	$(ML) $(ASMFLAGS) /Fo$@ /c $<
 
 !if "ARM64"=="$(TARGET_CPU)"
-TARGET= jarm64.exe
+TARGET= jarm64.dll
 !elseif "x64"=="$(TARGET_CPU)"
 !if "1"=="$(JAVX512)"
 TARGET= javx512.dll