diff --git a/scriptengine.cpp b/scriptengine.cpp
index 9ae5516..a3676e1 100644
--- a/scriptengine.cpp
+++ b/scriptengine.cpp
@@ -166,6 +166,7 @@ bool ScriptEngine::convert(File *file, QString &outpath, const QString &format,
 #ifdef PLATESOLVER
 void ScriptEngine::setSolverProfile(int index)
 {
+    index -= 1;
     if(_solver && index >= SSolver::Parameters::DEFAULT && index < SSolver::Parameters::BIG_STARS)
     {
         _solver->setParameters((SSolver::Parameters::ParametersProfile)index);