diff --git a/src/support/Systemcall.cpp b/src/support/Systemcall.cpp
index 3cb420bb51..04d7ab9f72 100644
--- a/src/support/Systemcall.cpp
+++ b/src/support/Systemcall.cpp
@@ -109,7 +109,7 @@ int Systemcall::startscript(Starttype how, string const & what, bool process_eve
 
 	d.startProcess(cmd);
 	if (!d.waitWhile(SystemcallPrivate::Starting, process_events, -1)) {
-		LYXERR0("Systemcall: '" << cmd << " did not start!");
+		LYXERR0("Systemcall: '" << cmd << "' did not start!");
 		LYXERR0("error " << d.errorMessage());
 		return 10;
 	}