diff --git a/codeCore/src/prog8/code/core/Position.kt b/codeCore/src/prog8/code/core/Position.kt
index 3efb8f1d7..f4b7032c7 100644
--- a/codeCore/src/prog8/code/core/Position.kt
+++ b/codeCore/src/prog8/code/core/Position.kt
@@ -11,6 +11,6 @@ data class Position(val file: String, val line: Int, val startCol: Int, val endC
     }
 
     companion object {
-        val DUMMY = Position("<dummy>", 0, 0, 0)
+        val DUMMY = Position("~dummy~", 0, 0, 0)
     }
 }
\ No newline at end of file
diff --git a/codeCore/src/prog8/code/core/SourceCode.kt b/codeCore/src/prog8/code/core/SourceCode.kt
index ba60e1edb..3c2e5a82d 100644
--- a/codeCore/src/prog8/code/core/SourceCode.kt
+++ b/codeCore/src/prog8/code/core/SourceCode.kt
@@ -34,7 +34,7 @@ sealed class SourceCode {
      * Where this [SourceCode] instance came from.
      * This can be one of the following:
      * * a normal string representation of a [java.nio.file.Path], if it originates from a file (see [File])
-     * * `$stringSourcePrefix44c56085>` if was created via [String]
+     * * `string:44c56085` if was created via [String]
      * * `library:/x/y/z.ext` if it is a library file that was loaded from resources (see [Resource])
      */
     abstract val origin: String
@@ -55,7 +55,7 @@ sealed class SourceCode {
          * filename prefix to designate library files that will be retreived from internal resources rather than disk
          */
         const val libraryFilePrefix = "library:"
-        const val stringSourcePrefix = "<String@"
+        const val stringSourcePrefix = "string:"
         val curdir: Path = Path(".").toAbsolutePath()
         fun relative(path: Path): Path = curdir.relativize(path.toAbsolutePath())
         fun isRegularFilesystemPath(pathString: String) =
@@ -64,12 +64,12 @@ sealed class SourceCode {
 
     /**
      * Turn a plain String into a [SourceCode] object.
-     * [origin] will be something like `$stringSourcePrefix44c56085>`.
+     * [origin] will be something like `string:44c56085`.
      */
     class Text(override val text: String): SourceCode() {
         override val isFromResources = false
         override val isFromFilesystem = false
-        override val origin = "$stringSourcePrefix${System.identityHashCode(text).toString(16)}>"
+        override val origin = "$stringSourcePrefix${System.identityHashCode(text).toString(16)}"
         override val name = "<unnamed-text>"
     }
 
diff --git a/compiler/test/ast/TestProg8Parser.kt b/compiler/test/ast/TestProg8Parser.kt
index 521983e53..54b34b69b 100644
--- a/compiler/test/ast/TestProg8Parser.kt
+++ b/compiler/test/ast/TestProg8Parser.kt
@@ -204,7 +204,7 @@ class TestProg8Parser: FunSpec( {
             val module = parseModule(SourceCode.Text(srcText))
 
             // Note: assertContains has *actual* as first param
-            module.name shouldContain Regex("^<String@[0-9a-f\\-]+>$")
+            module.name shouldContain Regex("^string:[0-9a-f\\-]+$")
         }
 
         test("parsed from a file") {
@@ -267,7 +267,7 @@ class TestProg8Parser: FunSpec( {
             val srcText = "bad * { }\n"
 
             val e = shouldThrow<ParseError> { parseModule(SourceCode.Text(srcText)) }
-            assertPosition(e.position, Regex("^<String@[0-9a-f\\-]+>$"), 1, 4, 4)
+            assertPosition(e.position, Regex("^string:[0-9a-f\\-]+$"), 1, 4, 4)
         }
 
         test("in ParseError from bad file source code") {
@@ -283,7 +283,7 @@ class TestProg8Parser: FunSpec( {
                 }
             """
             val module = parseModule(SourceCode.Text(srcText))
-            assertPositionOf(module, Regex("^<String@[0-9a-f\\-]+>$"), 1, 0)
+            assertPositionOf(module, Regex("^string:[0-9a-f\\-]+$"), 1, 0)
         }
 
         test("of Module parsed from a file") {
diff --git a/compiler/test/ast/TestSourceCode.kt b/compiler/test/ast/TestSourceCode.kt
index 3bd0c427d..8bb3e9abe 100644
--- a/compiler/test/ast/TestSourceCode.kt
+++ b/compiler/test/ast/TestSourceCode.kt
@@ -19,7 +19,7 @@ class TestSourceCode: AnnotationSpec() {
         """
         val src = SourceCode.Text(text)
 
-        src.origin shouldContain Regex("^<String@[0-9a-f\\-]+>$")
+        src.origin shouldContain Regex("^string:[0-9a-f\\-]+$")
         src.text shouldBe text
         src.isFromResources shouldBe false
         src.isFromFilesystem shouldBe false