diff --git a/crypto/base.h b/crypto/base.h
index a5ec844e..632d5512 100644
--- a/crypto/base.h
+++ b/crypto/base.h
@@ -71,6 +71,9 @@
 #elif defined(__arm) || defined(__arm__) || defined(_M_ARM)
 #define OPENSSL_32_BIT
 #define OPENSSL_ARM
+#elif defined(__mips__)
+#define OPENSSL_32_BIT
+#define OPENSSL_MIPS
 #else
 #error "Unknown target CPU"
 #endif