diff --git a/src/vcd/parse/events.rs b/src/vcd/parse/events.rs
index 2246d15..1a75e73 100644
--- a/src/vcd/parse/events.rs
+++ b/src/vcd/parse/events.rs
@@ -96,7 +96,11 @@ pub(super) fn parse_events<'a, R: std::io::Read>(
                     Err(
                         BinaryParserErrTypes::XValue
                         | BinaryParserErrTypes::ZValue
-                        | BinaryParserErrTypes::UValue,
+                        | BinaryParserErrTypes::UValue
+                        | BinaryParserErrTypes::WValue
+                        | BinaryParserErrTypes::HValue
+                        | BinaryParserErrTypes::DashValue
+                        | BinaryParserErrTypes::LValue,
                     ) => {
                         store_as_string = true;
                         value_string = binary_value.to_string();
@@ -408,7 +412,7 @@ pub(super) fn parse_events<'a, R: std::io::Read>(
             }
 
             // // other one bit cases
-            "x" | "X" | "z" | "Z" | "u" | "U" => {
+            "x" | "X" | "z" | "Z" | "u" | "U" | "h" | "H" | "l" | "L" | "w" | "W" | "-" => {
                 let val = word.to_string();
                 // lokup signal idx
                 let hash = &word[1..];
diff --git a/src/vcd/utilities.rs b/src/vcd/utilities.rs
index 3fb5122..0f3e246 100644
--- a/src/vcd/utilities.rs
+++ b/src/vcd/utilities.rs
@@ -7,6 +7,10 @@ pub(super) enum BinaryParserErrTypes {
     XValue,
     ZValue,
     UValue,
+    HValue,
+    LValue,
+    DashValue,
+    WValue,
     OtherValue(char),
     TooLong,
 }
@@ -39,6 +43,10 @@ fn base2_str_to_byte(word: &[u8]) -> Result<u8, BinaryParserErrTypes> {
             b'x' | b'X' => return Err(BinaryParserErrTypes::XValue),
             b'z' | b'Z' => return Err(BinaryParserErrTypes::ZValue),
             b'u' | b'U' => return Err(BinaryParserErrTypes::UValue),
+            b'l' | b'L' => return Err(BinaryParserErrTypes::LValue),
+            b'h' | b'H' => return Err(BinaryParserErrTypes::HValue),
+            b'w' | b'W' => return Err(BinaryParserErrTypes::WValue),
+            b'-' => return Err(BinaryParserErrTypes::DashValue),
             _ => return Err(BinaryParserErrTypes::OtherValue(*chr as char)),
         }
     }