diff --git a/libobs/util/platform.c b/libobs/util/platform.c
index def19fe1b..008cbbb07 100644
--- a/libobs/util/platform.c
+++ b/libobs/util/platform.c
@@ -248,6 +248,7 @@ bool os_quick_write_mbs_file(const char *path, const char *str, size_t len)
 	if (mbs_len)
 		fwrite(mbs, 1, mbs_len, f);
 	bfree(mbs);
+	fflush(f);
 	fclose(f);
 
 	return true;
@@ -264,6 +265,7 @@ bool os_quick_write_utf8_file(const char *path, const char *str, size_t len,
 		fwrite("\xEF\xBB\xBF", 1, 3, f);
 	if (len)
 		fwrite(str, 1, len, f);
+	fflush(f);
 	fclose(f);
 
 	return true;