diff --git a/job.cpp b/job.cpp
--- a/job.cpp
+++ b/job.cpp
@@ -117,7 +117,7 @@
     /* extra parameters */
     QString cppcheckParameters(parameters.parameters);
     if (!cppcheckParameters.isEmpty())
-        args.append(cppcheckParameters);
+        args.append(KShell::splitArgs(cppcheckParameters));
 
     if (parameters.checkStyle)
         args.append("--enable=style");