diff --git a/compilerAst/src/prog8/ast/antlr/Antlr2Kotlin.kt b/compilerAst/src/prog8/ast/antlr/Antlr2Kotlin.kt
index 110e56a0e..666268e25 100644
--- a/compilerAst/src/prog8/ast/antlr/Antlr2Kotlin.kt
+++ b/compilerAst/src/prog8/ast/antlr/Antlr2Kotlin.kt
@@ -14,15 +14,6 @@ private data class NumericLiteral(val number: Number, val datatype: DataType)
 
 
 private fun ParserRuleContext.toPosition() : Position {
-    /*
-    val customTokensource = this.start.tokenSource as? CustomLexer
-    val filename =
-            when {
-                customTokensource!=null -> customTokensource.modulePath.toString()
-                start.tokenSource.sourceName == IntStream.UNKNOWN_SOURCE_NAME -> "@internal@"
-                else -> File(start.inputStream.sourceName).name
-            }
-    */
     val filename = start.inputStream.sourceName
 
     // note: beware of TAB characters in the source text, they count as 1 column...
diff --git a/compilerAst/src/prog8/parser/SourceCode.kt b/compilerAst/src/prog8/parser/SourceCode.kt
index df1975aef..a27e5ed11 100644
--- a/compilerAst/src/prog8/parser/SourceCode.kt
+++ b/compilerAst/src/prog8/parser/SourceCode.kt
@@ -4,6 +4,9 @@ import org.antlr.v4.runtime.CharStream
 import org.antlr.v4.runtime.CharStreams
 import java.io.File
 import java.io.IOException
+import java.nio.channels.Channels
+import java.nio.charset.CodingErrorAction
+import java.nio.charset.StandardCharsets
 import java.nio.file.Path
 import kotlin.io.path.absolutePathString
 import kotlin.io.path.exists
@@ -72,7 +75,7 @@ sealed class SourceCode {
     class Text(val text: String): SourceCode() {
         override val isFromResources = false
         override val origin = "<String@${System.identityHashCode(text).toString(16)}>"
-        override fun getCharStream(): CharStream = CharStreams.fromString(text)
+        override fun getCharStream(): CharStream = CharStreams.fromString(text, origin)
     }
 
     /**
@@ -124,8 +127,10 @@ sealed class SourceCode {
         override val isFromResources = true
         override val origin = "$libraryFilePrefix$normalized"
         override fun getCharStream(): CharStream {
-            val inpStr = object {}.javaClass.getResourceAsStream(normalized)
-            return CharStreams.fromStream(inpStr)
+            val inpStr = object {}.javaClass.getResourceAsStream(normalized)!!
+            // CharStreams.fromStream() doesn't allow us to set the stream name properly, so we use a lower level api
+            val channel = Channels.newChannel(inpStr)
+            return CharStreams.fromChannel(channel, StandardCharsets.UTF_8, 4096, CodingErrorAction.REPLACE, origin, -1);
         }
     }
 
diff --git a/docs/source/todo.rst b/docs/source/todo.rst
index 799c2b183..5b21b6837 100644
--- a/docs/source/todo.rst
+++ b/docs/source/todo.rst
@@ -3,9 +3,7 @@ TODO
 
 For next compiler release
 ^^^^^^^^^^^^^^^^^^^^^^^^^
-- fix "unknown" reported in resulting .asm as source file of included library modules/resources
-    unittest: "of non-root Nodes parsed from a string"
-
+- fix weird error when doing %import textio.p8
 
 
 Blocked by Commander-x16 v39 release
diff --git a/examples/test.p8 b/examples/test.p8
index e52d7a5c9..b145e07ec 100644
--- a/examples/test.p8
+++ b/examples/test.p8
@@ -4,7 +4,7 @@ main {
     str myBar = "main.bar"
 
 foo_bar:
-    %asminclude "compiler/test/fixtures/foo_bar.asm22"   ; FIXME: should be accessible from inside start() but give assembler error
+    ; %asminclude "compiler/test/fixtures/foo_bar.asm22"   ; FIXME: should be accessible from inside start() but give assembler error
 
 	sub start() {
 	    txt.print(myBar)