diff --git a/.gitignore b/.gitignore
index 40f21f1..b7bf307 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 # ---> N2T
 tools/bin/Hardware Simulator.dat
 tools/bin/CPU Emulator.dat
+tools/bin/Virtual Machine Emulator.dat
 # ---> Python
 # Byte-compiled / optimized / DLL files
 __pycache__/
diff --git a/jack_compiler/src/tokenizer.rs b/jack_compiler/src/tokenizer.rs
index e957188..67ef8d6 100644
--- a/jack_compiler/src/tokenizer.rs
+++ b/jack_compiler/src/tokenizer.rs
@@ -359,7 +359,7 @@ fn parse_keyword_or_identifier(chars: &Vec<char>, tokens: &mut Vec<Token>, index
     token_string.push(chars[index]);
     index += 1;
 
-    while chars[index].is_alphanumeric() {
+    while chars[index].is_alphanumeric() || chars[index] == '_' {
         token_string.push(chars[index]);
         index += 1;
     }
diff --git a/tools/bin/Virtual Machine Emulator.dat b/tools/bin/Virtual Machine Emulator.dat
deleted file mode 100644
index a92f610..0000000
--- a/tools/bin/Virtual Machine Emulator.dat	
+++ /dev/null
@@ -1 +0,0 @@
-C:\Users\Eytan\Desktop\New folder\nand2tetris\projects\08\FunctionCalls\NestedCall