diff --git a/source/blender/makesrna/intern/rna_attribute.cc b/source/blender/makesrna/intern/rna_attribute.cc
index 3901a121fb2..aca5c5ae761 100644
--- a/source/blender/makesrna/intern/rna_attribute.cc
+++ b/source/blender/makesrna/intern/rna_attribute.cc
@@ -1013,7 +1013,7 @@ static void rna_def_attribute_bool(BlenderRNA *brna)
   RNA_def_struct_sdna(srna, "MBoolProperty");
   RNA_def_struct_ui_text(srna, "Bool Attribute Value", "Bool value in geometry attribute");
   prop = RNA_def_property(srna, "value", PROP_BOOLEAN, PROP_NONE);
-  RNA_def_property_boolean_sdna(prop, nullptr, "b", 0x01);
+  RNA_def_property_boolean_sdna(prop, nullptr, "b", 0);
 }
 
 static void rna_def_attribute_int8(BlenderRNA *brna)