diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..1377554ebea6f98a2c748183bc5a96852af12ac2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.swp
diff --git a/include/inc-core/fileir.hpp b/include/inc-core/fileir.hpp
index 0f2973c21e05c785dcfd9857f4c1a8c38b192835..3395ac320020459cfffeaf7749d65cbd81588f13 100644
--- a/include/inc-core/fileir.hpp
+++ b/include/inc-core/fileir.hpp
@@ -63,7 +63,7 @@ namespace IRDB_SDK
 					const EhProgramListing_t& p_fde_program={}
 					) = 0;
 
-			virtual AddressID_t* addNewAddress(const DatabaseID_t& myfileID, const VirtualOffset_t& voff) =0 ;
+			virtual AddressID_t* addNewAddress(const DatabaseID_t& myfileID, const VirtualOffset_t& voff=0) =0 ;
 			virtual ICFS_t*      addNewICFS   (Instruction_t* insn=nullptr, const InstructionSet_t& targets={}, const ICFSAnalysisStatus_t& status=iasAnalysisIncomplete) = 0; 
 
 			virtual Instruction_t* addNewInstruction(