diff --git a/src/Sha2.c b/src/Sha2.c
index 70349b7..4bd1393 100644
--- a/src/Sha2.c
+++ b/src/Sha2.c
@@ -29,10 +29,12 @@
 
 #include <limits.h>
 
-#if defined(LONG_BIT) && LONG_BIT == 32
+#if (defined(LONG_BIT) && LONG_BIT == 32) || \
+	(defined(INT_WIDTH) && INT_WIDTH == 32)
 typedef unsigned long uint32_t;
 
-#elif defined(WORD_BIT) && WORD_BIT == 32
+#elif (defined(WORD_BIT) && WORD_BIT == 32) || \
+	(defined(LONG_WIDTH) && LONG_WIDTH == 32)
 typedef unsigned int uint32_t;
 
 #else