diff --git a/Packages/vChewing_Shared/Sources/Shared/Shared.swift b/Packages/vChewing_Shared/Sources/Shared/Shared.swift
index 3da958c2..a67e098a 100644
--- a/Packages/vChewing_Shared/Sources/Shared/Shared.swift
+++ b/Packages/vChewing_Shared/Sources/Shared/Shared.swift
@@ -41,7 +41,7 @@ public enum UserDef: String, CaseIterable {
   case kHalfWidthPunctuationEnabled = "HalfWidthPunctuationEnable"
   case kMoveCursorAfterSelectingCandidate = "MoveCursorAfterSelectingCandidate"
   case kEscToCleanInputBuffer = "EscToCleanInputBuffer"
-  case kSpecifyIntonationKeyBehavior = "SecifyIntonationKeyBehavior"
+  case kSpecifyIntonationKeyBehavior = "SpecifyIntonationKeyBehavior"
   case kSpecifyShiftBackSpaceKeyBehavior = "SpecifyShiftBackSpaceKeyBehavior"
   case kSpecifyShiftTabKeyBehavior = "SpecifyShiftTabKeyBehavior"
   case kSpecifyShiftSpaceKeyBehavior = "SpecifyShiftSpaceKeyBehavior"
diff --git a/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib b/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib
index fc64cdf3..26b49160 100644
--- a/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib
+++ b/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib
@@ -1051,7 +1051,7 @@
                                         </column>
                                     </cells>
                                     <connections>
-                                        <binding destination="32" name="selectedTag" keyPath="values.SecifyIntonationKeyBehavior" id="k3O-tW-1Zy"/>
+                                        <binding destination="32" name="selectedTag" keyPath="values.SpecifyIntonationKeyBehavior" id="k3O-tW-1Zy"/>
                                     </connections>
                                 </matrix>
                             </subviews>