diff --git a/lib/pure/includes/osenv.nim b/lib/pure/includes/osenv.nim
index f9c076158d..bc47501215 100644
--- a/lib/pure/includes/osenv.nim
+++ b/lib/pure/includes/osenv.nim
@@ -1,6 +1,6 @@
 # Include file that implements 'getEnv' and friends. Do not import it!
 
-when not declared(os):
+when not declared(os) and not declared(ospaths):
   {.error: "This is an include file for os.nim!".}
 
 from parseutils import skipIgnoreCase
diff --git a/lib/pure/includes/oserr.nim b/lib/pure/includes/oserr.nim
index 947bdd9a94..68ce5d95fa 100644
--- a/lib/pure/includes/oserr.nim
+++ b/lib/pure/includes/oserr.nim
@@ -1,6 +1,6 @@
 # Include file that implements 'osErrorMsg' and friends. Do not import it!
 
-when not declared(os):
+when not declared(os) and not declared(ospaths):
   {.error: "This is an include file for os.nim!".}
 
 when not defined(nimscript):