diff --git a/compiler/src/prog8/compiler/Compiler.kt b/compiler/src/prog8/compiler/Compiler.kt
index ae6043d57..c639684db 100644
--- a/compiler/src/prog8/compiler/Compiler.kt
+++ b/compiler/src/prog8/compiler/Compiler.kt
@@ -351,8 +351,8 @@ fun printAst(programAst: Program) {
     println()
 }
 
-fun loadAsmIncludeFile(filename: String, sourcePath: Path): String {
-    return if (filename.startsWith("library:")) {   // FIXME: is the prefix "library:" or is it "@embedded@"?
+internal fun loadAsmIncludeFile(filename: String, sourcePath: Path): String {
+    return if (filename.startsWith("library:")) {
         val resource = tryGetEmbeddedResource(filename.substring(8))
             ?: throw IllegalArgumentException("library file '$filename' not found")
         resource.bufferedReader().use { it.readText() }
diff --git a/compiler/src/prog8/compiler/ModuleImporter.kt b/compiler/src/prog8/compiler/ModuleImporter.kt
index 808380453..131b61e0e 100644
--- a/compiler/src/prog8/compiler/ModuleImporter.kt
+++ b/compiler/src/prog8/compiler/ModuleImporter.kt
@@ -36,7 +36,7 @@ class ModuleImporter(private val program: Program,
             else -> candidates.first()  // TODO: report error if more than 1 candidate?
         }
 
-        val logMsg = "importing '${filePath.nameWithoutExtension}' (from $srcPath)"
+        val logMsg = "importing '${filePath.nameWithoutExtension}' (from file $srcPath)"
         println(logMsg)
 
         return importModule(SourceCode.fromPath(srcPath))
@@ -79,7 +79,7 @@ class ModuleImporter(private val program: Program,
         var srcCode = tryGetModuleFromResource("$moduleName.p8", compilationTargetName)
         val importedModule =
             if (srcCode != null) {
-                println("importing '$moduleName' (library): ${srcCode.origin}")
+                println("importing '$moduleName' (from internal ${srcCode.origin})")
                 importModule(srcCode)
             } else {
                 srcCode = tryGetModuleFromFile(moduleName, importingModule)
diff --git a/compilerAst/src/prog8/parser/SourceCode.kt b/compilerAst/src/prog8/parser/SourceCode.kt
index 8a7bbadc3..dbe0ccb52 100644
--- a/compilerAst/src/prog8/parser/SourceCode.kt
+++ b/compilerAst/src/prog8/parser/SourceCode.kt
@@ -32,7 +32,7 @@ abstract class SourceCode {
      * This can be one of the following:
      * * a normal string representation of a [java.nio.file.Path], if it originates from a file (see [fromPath])
      * * `<String@44c56085>` if was created via [of]
-     * * `@embedded@/x/y/z.ext` if it came from resources (see [fromResources])
+     * * `library:/x/y/z.ext` if it is a library file that was loaded from resources (see [fromResources])
      */
     abstract val origin: String
 
@@ -106,7 +106,7 @@ abstract class SourceCode {
         }
 
         /**
-         * [origin]: `<res:/x/y/z.p8>` for a given `pathString` of "x/y/z.p8"
+         * [origin]: `<library:/x/y/z.p8>` for a given `pathString` of "x/y/z.p8"
          */
         fun fromResources(pathString: String): SourceCode {
             val path = Path.of(pathString).normalize()
@@ -121,7 +121,7 @@ abstract class SourceCode {
             }
             return object : SourceCode() {
                 override val isFromResources = true
-                override val origin = "@embedded@$normalized"
+                override val origin = "library:$normalized"
                 override fun getCharStream(): CharStream {
                     val inpStr = object {}.javaClass.getResourceAsStream(normalized)
                     return CharStreams.fromStream(inpStr)
diff --git a/compilerAst/test/TestSourceCode.kt b/compilerAst/test/TestSourceCode.kt
index dfbcca52d..a35420a83 100644
--- a/compilerAst/test/TestSourceCode.kt
+++ b/compilerAst/test/TestSourceCode.kt
@@ -77,7 +77,7 @@ class TestSourceCode {
         val srcFile = assumeReadableFile(resourcesDir, pathString).toFile()
         val src = SourceCode.fromResources(pathString)
 
-        assertEquals("@embedded@/$pathString", src.origin)
+        assertEquals("library:/$pathString", src.origin)
         assertEquals(srcFile.readText(), src.asString())
     }
 
@@ -87,7 +87,7 @@ class TestSourceCode {
         val srcFile = assumeReadableFile(resourcesDir, pathString.substring(1)).toFile()
         val src = SourceCode.fromResources(pathString)
 
-        assertEquals("@embedded@$pathString", src.origin)
+        assertEquals("library:$pathString", src.origin)
         assertEquals(srcFile.readText(), src.asString())
     }
 
@@ -97,7 +97,7 @@ class TestSourceCode {
         val srcFile = assumeReadableFile(resourcesDir, pathString).toFile()
         val src = SourceCode.fromResources(pathString)
 
-        assertEquals("@embedded@/$pathString", src.origin)
+        assertEquals("library:/$pathString", src.origin)
         assertEquals(srcFile.readText(), src.asString())
         assertTrue(src.isFromResources, ".isFromResources")
     }
@@ -108,7 +108,7 @@ class TestSourceCode {
         val srcFile = assumeReadableFile(resourcesDir, pathString.substring(1)).toFile()
         val src = SourceCode.fromResources(pathString)
 
-        assertEquals("@embedded@$pathString", src.origin)
+        assertEquals("library:$pathString", src.origin)
         assertEquals(srcFile.readText(), src.asString())
     }
 
@@ -118,7 +118,7 @@ class TestSourceCode {
         val srcFile = assumeReadableFile(resourcesDir, pathString.substring(1)).toFile()
         val src = SourceCode.fromResources(pathString)
 
-        assertEquals("@embedded@/prog8lib/math.p8", src.origin)
+        assertEquals("library:/prog8lib/math.p8", src.origin)
         assertEquals(srcFile.readText(), src.asString())
         assertTrue(src.isFromResources, ".isFromResources")
     }