diff --git a/src/grammars/mblf.pest b/src/grammars/mblf.pest
index 07b9ed1..8406ec3 100644
--- a/src/grammars/mblf.pest
+++ b/src/grammars/mblf.pest
@@ -20,11 +20,9 @@ point          =@{ "point"    ~ spacing+ ~ variable }
 pointm         =@{ "pointm"   ~ spacing+ ~ variable }
 
 add            =@{ "add"      ~ spacing+ ~ constant }
-addb           =@{ "addb"     ~ spacing+ ~ constant }
 addv           =@{ "addv"     ~ spacing+ ~ variable }
 
 sub            =@{ "sub"      ~ spacing+ ~ constant }
-subb           =@{ "subb"     ~ spacing+ ~ constant }
 subv           =@{ "subv"     ~ spacing+ ~ variable }
 
 copy           =@{ "copy"     ~ spacing+ ~ variable }
@@ -43,11 +41,9 @@ instruction    =_{ macaroo
                  | pointm
 
                  | add
-                 | addb
                  | addv
 
                  | sub
-                 | subb
                  | subv
 
                  | copy
diff --git a/src/main.rs b/src/main.rs
index dc7256f..fb6ec88 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -122,15 +122,6 @@ fn to_bf(rule: Rule, operand: &str, state: &mut State, out: &mut Builder) {
             );
             out.append("+".repeat(constant_parsed as usize));
         }
-        Rule::addb => {
-            let constant = operand;
-            let constant_parsed = parse_constant(constant).unwrap();
-            println!(
-                "Big Addition of '{}', decimal value is {}",
-                constant, constant_parsed
-            );
-            out.append("addb\n");
-        }
         Rule::addv => {
             let variable_name = operand;
             println!("Addition to variable '{}'", variable_name);
@@ -145,15 +136,6 @@ fn to_bf(rule: Rule, operand: &str, state: &mut State, out: &mut Builder) {
             );
             out.append("-".repeat(constant_parsed as usize));
         }
-        Rule::subb => {
-            let constant = operand;
-            let constant_parsed = parse_constant(constant).unwrap();
-            println!(
-                "Big Subtraction of '{}', decimal value is {}",
-                constant, constant_parsed
-            );
-            out.append("subb\n");
-        }
         Rule::subv => {
             let variable_name = operand;
             println!("Subtraction from variable '{}'", variable_name);