diff --git a/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java b/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java
index c96ec6020..05cafa9eb 100644
--- a/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java
+++ b/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java
@@ -79,7 +79,7 @@ public final class BinaryBuffer {
     }
 
     public boolean canRead(int size) {
-        return readerOffset + size < capacity;
+        return readerOffset + size <= writerOffset;
     }
 
     public boolean canWrite(int size) {