diff --git a/java/src/com/android/inputmethod/keyboard/internal/KeyboardState.java b/java/src/com/android/inputmethod/keyboard/internal/KeyboardState.java
index 4af4e3c..38837f5 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/KeyboardState.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/KeyboardState.java
@@ -80,14 +80,14 @@
     static class SavedKeyboardState {
         public boolean mIsValid;
         public boolean mIsAlphabetMode;
-        public boolean mIsShiftLocked;
+        public boolean mIsAlphabetShiftLocked;
         public boolean mIsShifted;
 
         @Override
         public String toString() {
             if (!mIsValid) return "INVALID";
             if (mIsAlphabetMode) {
-                if (mIsShiftLocked) return "ALPHABET_SHIFT_LOCKED";
+                if (mIsAlphabetShiftLocked) return "ALPHABET_SHIFT_LOCKED";
                 return mIsShifted ? "ALPHABET_SHIFTED" : "ALPHABET";
             } else {
                 return mIsShifted ? "SYMBOLS_SHIFTED" : "SYMBOLS";
@@ -117,11 +117,11 @@
         final SavedKeyboardState state = mSavedKeyboardState;
         state.mIsAlphabetMode = mIsAlphabetMode;
         if (mIsAlphabetMode) {
-            state.mIsShiftLocked = mAlphabetShiftState.isShiftLocked();
-            state.mIsShifted = !state.mIsShiftLocked
+            state.mIsAlphabetShiftLocked = mAlphabetShiftState.isShiftLocked();
+            state.mIsShifted = !state.mIsAlphabetShiftLocked
                     && mAlphabetShiftState.isShiftedOrShiftLocked();
         } else {
-            state.mIsShiftLocked = false;
+            state.mIsAlphabetShiftLocked = mPrevMainKeyboardWasShiftLocked;
             state.mIsShifted = mIsSymbolShifted;
         }
         state.mIsValid = true;
@@ -149,10 +149,12 @@
         state.mIsValid = false;
 
         if (state.mIsAlphabetMode) {
-            setShiftLocked(state.mIsShiftLocked);
-            if (!state.mIsShiftLocked) {
+            setShiftLocked(state.mIsAlphabetShiftLocked);
+            if (!state.mIsAlphabetShiftLocked) {
                 setShifted(state.mIsShifted ? MANUAL_SHIFT : UNSHIFT);
             }
+        } else {
+            mPrevMainKeyboardWasShiftLocked = state.mIsAlphabetShiftLocked;
         }
     }
 
diff --git a/tests/src/com/android/inputmethod/keyboard/internal/KeyboardStateSingleTouchTests.java b/tests/src/com/android/inputmethod/keyboard/internal/KeyboardStateSingleTouchTests.java
index e2feb9e..2b11b63 100644
--- a/tests/src/com/android/inputmethod/keyboard/internal/KeyboardStateSingleTouchTests.java
+++ b/tests/src/com/android/inputmethod/keyboard/internal/KeyboardStateSingleTouchTests.java
@@ -576,24 +576,68 @@
 
     // Change orientation.
     public void testChangeOrientation() {
-        // Press/release shift key.
+        // Alphabet -> rotate -> alphabet.
+        updateShiftState(ALPHABET_UNSHIFTED);
+        // Rotate device, remain in alphabet.
+        rotateDevice(ALPHABET_UNSHIFTED);
+
+        // Alphabet shifted -> rotate -> alphabet shifted.
+        // Press/release shift key, enter alphabet shifted.
         pressAndReleaseKey(CODE_SHIFT, ALPHABET_MANUAL_SHIFTED, ALPHABET_MANUAL_SHIFTED);
-        // Rotate device.
+        // Rotate device, remain in alphabet shifted.
         rotateDevice(ALPHABET_MANUAL_SHIFTED);
 
+        // Alphabet shift locked -> rotate -> alphabet shift locked.
         // Long press shift key, enter alphabet shift locked.
         longPressShiftKey(ALPHABET_MANUAL_SHIFTED, ALPHABET_SHIFT_LOCKED);
-        // Rotate device.
+        // Rotate device, remain in alphabet shift locked.
         rotateDevice(ALPHABET_SHIFT_LOCKED);
 
-        // Press/release "?123" key.
+        // Alphabet shift locked -> symbols -> rotate -> symbols ->
+        // Alphabet shift locked.
+        // Press/release "?123" key, enter symbols.
         pressAndReleaseKey(CODE_SYMBOL, SYMBOLS_UNSHIFTED, SYMBOLS_UNSHIFTED);
-        // Rotate device.
+        // Rotate device, remain in symbols,
         rotateDevice(SYMBOLS_UNSHIFTED);
+        // Press/release "ABC" key, alphabet shift locked state should be maintained.
+        pressAndReleaseKey(CODE_SYMBOL, ALPHABET_SHIFT_LOCKED, ALPHABET_SHIFT_LOCKED);
 
-        // Press/release "=\<" key.
+        // Alphabet shift locked -> symbols shifted -> rotate -> symbols shifted ->
+        // Alphabet shift locked.
+        // Press/release "?123" key, enter symbols.
+        pressAndReleaseKey(CODE_SYMBOL, SYMBOLS_UNSHIFTED, SYMBOLS_UNSHIFTED);
+        // Press/release "=\<" key, enter symbols shifted.
         pressAndReleaseKey(CODE_SHIFT, SYMBOLS_SHIFTED, SYMBOLS_SHIFTED);
-        // Rotate device.
+        // Rotate device, remain in symbols shifted.
         rotateDevice(SYMBOLS_SHIFTED);
+        // Press/release "ABC" key, alphabet shift locked state should be maintained.
+        pressAndReleaseKey(CODE_SYMBOL, ALPHABET_SHIFT_LOCKED, ALPHABET_SHIFT_LOCKED);
+
+        // Alphabet shift locked -> symbols shifted -> alphabet shift locked -> rotate ->
+        // Alphabet shift locked -> symbols.
+        // Press/release "?123" key, enter symbols.
+        pressAndReleaseKey(CODE_SYMBOL, SYMBOLS_UNSHIFTED, SYMBOLS_UNSHIFTED);
+        // Press/release "=\<" key, enter symbols shifted.
+        pressAndReleaseKey(CODE_SHIFT, SYMBOLS_SHIFTED, SYMBOLS_SHIFTED);
+        // Press/release "ABC" key, enter alphabet shift locked.
+        pressAndReleaseKey(CODE_SYMBOL, ALPHABET_SHIFT_LOCKED, ALPHABET_SHIFT_LOCKED);
+        // Rotate device, remain in alphabet shift locked.
+        rotateDevice(ALPHABET_SHIFT_LOCKED);
+        // Press/release "?123" key, enter symbols (not symbols shifted).
+        pressAndReleaseKey(CODE_SYMBOL, SYMBOLS_UNSHIFTED, SYMBOLS_UNSHIFTED);
+
+        // Alphabet -> symbols shifted -> alphabet -> rotate ->
+        // Alphabet -> symbols.
+        loadKeyboard(ALPHABET_UNSHIFTED);
+        // Press/release "?123" key, enter symbols.
+        pressAndReleaseKey(CODE_SYMBOL, SYMBOLS_UNSHIFTED, SYMBOLS_UNSHIFTED);
+        // Press/release "=\<" key, enter symbols shifted.
+        pressAndReleaseKey(CODE_SHIFT, SYMBOLS_SHIFTED, SYMBOLS_SHIFTED);
+        // Press/release "ABC" key, enter alphabet.
+        pressAndReleaseKey(CODE_SYMBOL, ALPHABET_UNSHIFTED, ALPHABET_UNSHIFTED);
+        // Rotate device, remain in alphabet shift locked.
+        rotateDevice(ALPHABET_UNSHIFTED);
+        // Press/release "?123" key, enter symbols (not symbols shifted).
+        pressAndReleaseKey(CODE_SYMBOL, SYMBOLS_UNSHIFTED, SYMBOLS_UNSHIFTED);
     }
 }