diff --git a/ppc-simd.h b/ppc-simd.h
index 0a02485d..b69e8d2f 100644
--- a/ppc-simd.h
+++ b/ppc-simd.h
@@ -30,7 +30,6 @@ NAMESPACE_BEGIN(CryptoPP)
 
 #if defined(CRYPTOPP_ALTIVEC_AVAILABLE) || defined(CRYPTOPP_DOXYGEN_PROCESSING)
 
-typedef __vector char             int8x16_p;
 typedef __vector unsigned char   uint8x16_p;
 typedef __vector unsigned short  uint16x8_p;
 typedef __vector unsigned int    uint32x4_p;