diff --git a/pydoctor/astbuilder.py b/pydoctor/astbuilder.py
index 55320fd3d..1d7da427f 100644
--- a/pydoctor/astbuilder.py
+++ b/pydoctor/astbuilder.py
@@ -305,7 +305,7 @@ def processReExports(system:'model.System') -> None:
                 msg = f"cannot resolve origin module of re-exported name: {orgname or local_name!r}"
                 if orgname and local_name!=orgname:
                     msg += f" as {local_name!r}"
-                msg += f"from origin module {imported_name.orgmodule!r}"
+                msg += f" from origin module {imported_name.orgmodule!r}"
                 mod.report(msg, lineno_offset=imported_name.linenumber)
 
     exports_per_target:Dict[model.Documentable, List[ReExport]] = defaultdict(list)
diff --git a/pydoctor/test/test_astbuilder.py b/pydoctor/test/test_astbuilder.py
index fad7fa761..53c5aab93 100644
--- a/pydoctor/test/test_astbuilder.py
+++ b/pydoctor/test/test_astbuilder.py
@@ -2866,7 +2866,7 @@ class Slc:...
 
     assert list(system.allobjects['pack'].contents) == ['_src0', '_src1']
 
-    assert capsys.readouterr().out == ("pack:1: cannot resolve origin module of re-exported name: 'Slc'from origin module 'pack._src2'\n"
+    assert capsys.readouterr().out == ("pack:1: cannot resolve origin module of re-exported name: 'Slc' from origin module 'pack._src2'\n"
                                        "pack:1: cannot resolve re-exported name: 'pack._src1.Cls'\n")
 
 @systemcls_param