diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt
index d2713b2..d043112 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt
@@ -175,6 +175,7 @@ class Solfa(val sharedScreenModel: SharedScreenModel, private val fileRepository
     }
 
     fun parse(sourceFile: String) {
+        O.clear()
         currentFile = sourceFile
         val parseScope = CoroutineScope(Dispatchers.Default)
         parseScope.launch {