diff --git a/lib/libc/gen/tls.c b/lib/libc/gen/tls.c
index a669f99a9c8..2756e94fc6f 100644
--- a/lib/libc/gen/tls.c
+++ b/lib/libc/gen/tls.c
@@ -60,7 +60,7 @@ void __libc_free_tls(void *tls, size_t tcbsize, size_t tcbalign);
 #if defined(__ia64__) || defined(__amd64__)
 #define TLS_TCB_ALIGN 16
 #elif defined(__powerpc__) || defined(__i386__) || defined(__arm__) || \
-    defined(__sparc64__)
+    defined(__sparc64__) || defined(__mips__)
 #define TLS_TCB_ALIGN sizeof(void *)
 #else
 #error TLS_TCB_ALIGN undefined for target architecture
@@ -70,7 +70,7 @@ void __libc_free_tls(void *tls, size_t tcbsize, size_t tcbalign);
 #define TLS_VARIANT_I
 #endif
 #if defined(__i386__) || defined(__amd64__) || defined(__sparc64__) || \
-    defined(__arm__)
+    defined(__arm__) || defined(__mips__)
 #define TLS_VARIANT_II
 #endif