diff --git a/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt b/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt
index 10df392f8b12..3be94d65690f 100644
--- a/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt
+++ b/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt
@@ -1511,6 +1511,8 @@ open class KotlinUsesExtractor(
                     }
                 }
             }
+            is IrDynamicType -> {}
+            is IrErrorType -> {}
         }
         return t
     }
diff --git a/java/kotlin-extractor/src/main/kotlin/utils/versions/v_2_0_20-Beta2/getKotlinType.kt b/java/kotlin-extractor/src/main/kotlin/utils/versions/v_2_0_20-Beta2/getKotlinType.kt
new file mode 100644
index 000000000000..37fb2a700410
--- /dev/null
+++ b/java/kotlin-extractor/src/main/kotlin/utils/versions/v_2_0_20-Beta2/getKotlinType.kt
@@ -0,0 +1,5 @@
+package com.github.codeql.utils.versions
+
+import org.jetbrains.kotlin.ir.types.IrSimpleType
+
+fun getKotlinType(s: IrSimpleType) = s.originalKotlinType