diff --git a/arch/X86/X86IntelInstPrinter.c b/arch/X86/X86IntelInstPrinter.c
index d7c6d29f..0eed4dd0 100644
--- a/arch/X86/X86IntelInstPrinter.c
+++ b/arch/X86/X86IntelInstPrinter.c
@@ -733,7 +733,7 @@ void X86_Intel_printInst(MCInst *MI, SStream *O, void *Info)
 	reg = X86_insn_reg_intel(MCInst_getOpcode(MI), &access1);
 	if (MI->csh->detail) {
 #ifndef CAPSTONE_DIET
-		uint8_t access[6];
+		uint8_t access[6] = {0};
 #endif
 
 		// first op can be embedded in the asm by llvm.