diff --git a/lib/system.nim b/lib/system.nim
index 6d737d552..738666e8d 100644
--- a/lib/system.nim
+++ b/lib/system.nim
@@ -1835,8 +1835,7 @@ when defined(nimV2):
   include system/arc
 
 when not defined(nimPreviewSlimSystem):
-  {.deprecated: """assertions is about to move out of system; use `-d:nimPreviewSlimSystem` and
-                import `std/assertions`.""".}
+  {.deprecated: "assertions is about to move out of system; use `-d:nimPreviewSlimSystem` and import `std/assertions`".}
   import std/assertions
   export assertions
 
@@ -3158,8 +3157,7 @@ import system/widestrs
 export widestrs
 
 when not defined(nimPreviewSlimSystem):
-  {.deprecated: """io is about to move out of system; use `-d:nimPreviewSlimSystem` and
-                import `std/syncio`.""".}
+  {.deprecated: "io is about to move out of system; use `-d:nimPreviewSlimSystem` and import `std/syncio`".}
   import std/syncio
   export syncio