diff --git a/src/Mod/Sketcher/Gui/CommandConstraints.cpp b/src/Mod/Sketcher/Gui/CommandConstraints.cpp
index 8b1159116..e9a4e6770 100644
--- a/src/Mod/Sketcher/Gui/CommandConstraints.cpp
+++ b/src/Mod/Sketcher/Gui/CommandConstraints.cpp
@@ -1168,8 +1168,8 @@ void CmdSketcherConstrainPointOnObject::activated(int iMsg)
             points.push_back(id);
     }
 
-    if (points.size() == 1 && curves.size() >= 1 ||
-        points.size() >= 1 && curves.size() == 1) {
+    if ((points.size() == 1 && curves.size() >= 1) ||
+        (points.size() >= 1 && curves.size() == 1)) {
 
         openCommand("add point on object constraint");
         int cnt = 0;