diff --git a/src/unix.cpp b/src/unix.cpp
--- a/src/unix.cpp
+++ b/src/unix.cpp
@@ -111,7 +111,7 @@ static void ChangeWorkingDirectory(char 
 
 void ShowInfo(const char *str)
 {
-	fprintf(stderr, str);
+	fprintf(stderr, "%s\n", str);
 }
 
 void ShowOSErrorBox(const char *buf)
diff --git a/src/win32.cpp b/src/win32.cpp
--- a/src/win32.cpp
+++ b/src/win32.cpp
@@ -838,7 +838,7 @@ void CreateConsole(void)
 void ShowInfo(const char *str)
 {
 	if (_has_console) {
-		fprintf(stderr, str);
+		fprintf(stderr, "%s\n", str);
 	} else {
 		bool old;