diff --git a/src/block.rs b/src/block.rs
index 59e7b05..a7cc560 100644
--- a/src/block.rs
+++ b/src/block.rs
@@ -1,7 +1,37 @@
 #![allow(clippy::all)]
 
+use std::fmt;
+
 include!(concat!(env!("OUT_DIR"), "/block.rs"));
 
+impl fmt::Debug for BlockState {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let typ = self.to_type();
+
+        write!(f, "{}", typ.to_str())?;
+
+        let props = typ.props();
+
+        if !props.is_empty() {
+            let mut list = f.debug_list();
+            for &p in typ.props() {
+                struct KeyVal<'a>(&'a str, &'a str);
+
+                impl<'a> fmt::Debug for KeyVal<'a> {
+                    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+                        write!(f, "{}={}", self.0, self.1)
+                    }
+                }
+
+                list.entry(&KeyVal(p.to_str(), self.get(p).unwrap().to_str()));
+            }
+            list.finish()
+        } else {
+            Ok(())
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;