@@ -32,11 +32,11 @@
 	OFSecureData *_iVarsData;
 	struct of_sha1_hash_ivars {
 		uint32_t state[5];
 		uint64_t bits;
 		union of_sha1_hash_buffer {
-			uint8_t bytes[64];
+			unsigned char bytes[64];
 			uint32_t words[80];
 		} buffer;
 		size_t bufferLength;
 	} *_iVars;
 	bool _allowsSwappableMemory;