diff --git a/src/interfaces/abstract/STARSProgram.cpp b/src/interfaces/abstract/STARSProgram.cpp
index 4d6f5fd7fdcc8cdf9f156900b806a9a766324430..30452f39aaeea8d38041316888b685aaaab79057 100644
--- a/src/interfaces/abstract/STARSProgram.cpp
+++ b/src/interfaces/abstract/STARSProgram.cpp
@@ -377,14 +377,14 @@ bool STARS_Program_t::IsNumericSafeSystemCall(string CallName) const {
 
 // Utility functions to print code xrefs to STARS_XrefsFile
 void STARS_Program_t::PrintCodeToCodeXref(STARS_ea_t FromAddr, STARS_ea_t ToAddr, std::size_t InstrSize) {
-	SMP_fprintf(this->GetXrefsFile(), "%10lx %6zu INSTR XREF IBT FROMIB %10lx \n",
-		(unsigned long) ToAddr, InstrSize, (unsigned long) FromAddr);
+	SMP_fprintf(this->GetXrefsFile(), "%18llx %6zu INSTR XREF IBT FROMIB %18llx \n",
+		(unsigned long long) ToAddr, InstrSize, (unsigned long long) FromAddr);
 	return;
 }
 
 void STARS_Program_t::PrintDataToCodeXref(STARS_ea_t FromDataAddr, STARS_ea_t ToCodeAddr, std::size_t InstrSize) {
-	SMP_fprintf(this->GetXrefsFile(), "%10lx %6zu INSTR XREF IBT FROMDATA %10lx \n",
-		(unsigned long) ToCodeAddr, InstrSize, (unsigned long) FromDataAddr);
+	SMP_fprintf(this->GetXrefsFile(), "%18llx %6zu INSTR XREF IBT FROMDATA %18llx \n",
+		(unsigned long long) ToCodeAddr, InstrSize, (unsigned long long) FromDataAddr);
 	return;
 }