diff --git a/src/ModifyOffsetsDialog.cpp b/src/ModifyOffsetsDialog.cpp
index b97a108ec..f16a09a24 100644
--- a/src/ModifyOffsetsDialog.cpp
+++ b/src/ModifyOffsetsDialog.cpp
@@ -133,7 +133,7 @@ point2_t ModifyOffsetsDialog::getOffset()
 int	ModifyOffsetsDialog::getAlignType()
 {
 	if (opt_auto->GetValue())
-		return combo_aligntype->GetSelection();
+		return combo_aligntype->GetSelection()-1;
 	else
 		return -1;
 }