diff --git a/.gitignore b/.gitignore
index 38ca212f..c68ea1a8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,6 @@ ghc.mk
 myhist
 /dist-newstyle/
 /stack.yaml.lock
+
+# IDEs
+.vscode
diff --git a/includes/windows_cconv.h b/includes/windows_cconv.h
index 1ece48e9..5b620f50 100644
--- a/includes/windows_cconv.h
+++ b/includes/windows_cconv.h
@@ -3,7 +3,7 @@
 
 #if defined(i386_HOST_ARCH)
 # define WINDOWS_CCONV stdcall
-#elif defined(x86_64_HOST_ARCH)
+#elif defined(x86_64_HOST_ARCH) || defined(aarch64_HOST_ARCH)
 # define WINDOWS_CCONV ccall
 #else
 # error Unknown mingw32 arch