diff --git a/editor/project_converter_3_to_4.cpp b/editor/project_converter_3_to_4.cpp
index 7ef15859459..f8ba3f0354b 100644
--- a/editor/project_converter_3_to_4.cpp
+++ b/editor/project_converter_3_to_4.cpp
@@ -2351,7 +2351,9 @@ bool ProjectConverter3To4::test_conversion(RegExContainer &reg_container) {
 	valid = valid && test_conversion_gdscript_builtin("OS.get_window_safe_area()", "DisplayServer.get_display_safe_area()", &ProjectConverter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
 
 	valid = valid && test_conversion_gdscript_builtin("\tvar aa = roman(r.move_and_slide( a, b, c, d, e, f )) # Roman", "\tr.set_velocity(a)\n\tr.set_up_direction(b)\n\tr.set_floor_stop_on_slope_enabled(c)\n\tr.set_max_slides(d)\n\tr.set_floor_max_angle(e)\n\t# TODOConverter40 infinite_inertia were removed in Godot 4.0 - previous value `f`\n\tr.move_and_slide()\n\tvar aa = roman(r.velocity) # Roman", &ProjectConverter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
+	valid = valid && test_conversion_gdscript_builtin("\tmove_and_slide( a, b, c, d, e, f ) # Roman", "\tset_velocity(a)\n\tset_up_direction(b)\n\tset_floor_stop_on_slope_enabled(c)\n\tset_max_slides(d)\n\tset_floor_max_angle(e)\n\t# TODOConverter40 infinite_inertia were removed in Godot 4.0 - previous value `f`\n\tmove_and_slide() # Roman", &ProjectConverter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
 	valid = valid && test_conversion_gdscript_builtin("\tvar aa = roman(r.move_and_slide_with_snap( a, g, b, c, d, e, f )) # Roman", "\tr.set_velocity(a)\n\t# TODOConverter40 looks that snap in Godot 4.0 is float, not vector like in Godot 3 - previous value `g`\n\tr.set_up_direction(b)\n\tr.set_floor_stop_on_slope_enabled(c)\n\tr.set_max_slides(d)\n\tr.set_floor_max_angle(e)\n\t# TODOConverter40 infinite_inertia were removed in Godot 4.0 - previous value `f`\n\tr.move_and_slide()\n\tvar aa = roman(r.velocity) # Roman", &ProjectConverter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
+	valid = valid && test_conversion_gdscript_builtin("\tmove_and_slide_with_snap( a, g, b, c, d, e, f ) # Roman", "\tset_velocity(a)\n\t# TODOConverter40 looks that snap in Godot 4.0 is float, not vector like in Godot 3 - previous value `g`\n\tset_up_direction(b)\n\tset_floor_stop_on_slope_enabled(c)\n\tset_max_slides(d)\n\tset_floor_max_angle(e)\n\t# TODOConverter40 infinite_inertia were removed in Godot 4.0 - previous value `f`\n\tmove_and_slide() # Roman", &ProjectConverter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
 
 	valid = valid && test_conversion_gdscript_builtin("list_dir_begin( a , b )", "list_dir_begin() # TODOGODOT4 fill missing arguments https://github.com/godotengine/godot/pull/40547", &ProjectConverter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
 	valid = valid && test_conversion_gdscript_builtin("list_dir_begin( a )", "list_dir_begin() # TODOGODOT4 fill missing arguments https://github.com/godotengine/godot/pull/40547", &ProjectConverter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
@@ -3155,8 +3157,13 @@ void ProjectConverter3To4::process_gdscript_line(String &line, const RegExContai
 					line_new += starting_space + "# TODOConverter40 infinite_inertia were removed in Godot 4.0 - previous value `" + parts[5] + "`\n";
 				}
 
-				line_new += starting_space + base_obj + "move_and_slide()\n";
-				line = line_new + line.substr(0, start) + "velocity" + line.substr(end + start);
+				line_new += starting_space + base_obj + "move_and_slide()";
+
+				if (!line.begins_with(starting_space + "move_and_slide")) {
+					line = line_new + "\n" + line.substr(0, start) + "velocity" + line.substr(end + start);
+				} else {
+					line = line_new + line.substr(end + start);
+				}
 			}
 		}
 	}
@@ -3206,8 +3213,13 @@ void ProjectConverter3To4::process_gdscript_line(String &line, const RegExContai
 					line_new += starting_space + "# TODOConverter40 infinite_inertia were removed in Godot 4.0 - previous value `" + parts[6] + "`\n";
 				}
 
-				line_new += starting_space + base_obj + "move_and_slide()\n";
-				line = line_new + line.substr(0, start) + "velocity" + line.substr(end + start); // move_and_slide used to return velocity
+				line_new += starting_space + base_obj + "move_and_slide()";
+
+				if (!line.begins_with(starting_space + "move_and_slide_with_snap")) {
+					line = line_new + "\n" + line.substr(0, start) + "velocity" + line.substr(end + start);
+				} else {
+					line = line_new + line.substr(end + start);
+				}
 			}
 		}
 	}