diff --git a/libctru/source/sdmc_dev.c b/libctru/source/sdmc_dev.c
index ae99c16..4d48117 100644
--- a/libctru/source/sdmc_dev.c
+++ b/libctru/source/sdmc_dev.c
@@ -123,8 +123,8 @@ static const char *sdmc_fixpath(const char *path)
 
 }
 
-int __system_argc;
-char** __system_argv;
+extern int __system_argc;
+extern char** __system_argv;
 
 /*! Initialize SDMC device */
 Result sdmcInit(void)