diff --git a/cmdline/state.c b/cmdline/state.c
index 78b579d0..359a4be5 100644
--- a/cmdline/state.c
+++ b/cmdline/state.c
@@ -4857,7 +4857,7 @@ static void state_rename_content(struct snapraid_state* state)
 {
 	tommy_node* i;
 
-#if defined(_linux) /* this sequence is linux specific */
+#if defined(__linux__) /* this sequence is linux specific */
 	i = tommy_list_head(&state->contentlist);
 	while (i) {
 		struct snapraid_content* content = i->data;
diff --git a/os/unix.c b/os/unix.c
index 9311fa64..f50bb063 100644
--- a/os/unix.c
+++ b/os/unix.c
@@ -1849,7 +1849,7 @@ void os_abort(void)
 	const char* platform;
 	const char* compiler;
 
-#ifdef _linux
+#ifdef __linux__
 	platform = ", linux";
 #elif defined(__APPLE__)
 	platform = ", macOS";