diff --git a/src/ld65/exports.c b/src/ld65/exports.c
index b83d8b496..be14f7484 100644
--- a/src/ld65/exports.c
+++ b/src/ld65/exports.c
@@ -694,10 +694,15 @@ static void CheckSymType (const Export* E)
                            GetString (E->Obj->Name),
                            GetSourceName (ExportLI),
                            GetSourceLine (ExportLI));
-            } else {
+            } else if (ExportLI) {
                 SB_Printf (&ExportLoc, "%s(%u)",
                            GetSourceName (ExportLI),
                            GetSourceLine (ExportLI));
+            } else {
+                /* The export is linker generated and we don't have line
+                ** information (likely from command line define)
+                */
+                SB_Printf (&ExportLoc, "linker");
             }
             if (I->Obj) {
                 /* The import comes from an object file */