diff --git a/compiler/extccomp.nim b/compiler/extccomp.nim
index 2e1846424e89..ee921f4e1604 100644
--- a/compiler/extccomp.nim
+++ b/compiler/extccomp.nim
@@ -1138,7 +1138,7 @@ proc runJsonBuildInstructions*(conf: ConfigRef; projectfile: AbsoluteFile) =
 
   except:
     let e = getCurrentException()
-    quit "\ncaught exception:n" & e.msg & "\nstacktrace:\n" & e.getStackTrace() &
+    quit "\ncaught exception:\n" & e.msg & "\nstacktrace:\n" & e.getStackTrace() &
          "error evaluating JSON file: " & jsonFile.string
 
 proc genMappingFiles(conf: ConfigRef; list: CfileList): Rope =