diff --git a/tommath.h b/tommath.h
index 9a85b65..e26e1b9 100644
--- a/tommath.h
+++ b/tommath.h
@@ -25,7 +25,7 @@ extern "C" {
 #endif
 
 /* MS Visual C++ doesn't have a 128bit type for words, so fall back to 32bit MPI's (where words are 64bit) */
-#if defined(_MSC_VER) || defined(__LLP64__)
+#if defined(_MSC_VER) || defined(__LLP64__) || defined(__e2k__) || defined(__LCC__)
 #   define MP_32BIT
 #endif