diff --git a/.github/workflows/linux-gpu.yaml b/.github/workflows/linux-gpu.yaml
index ba7b4a004..6a7d2589e 100644
--- a/.github/workflows/linux-gpu.yaml
+++ b/.github/workflows/linux-gpu.yaml
@@ -12,6 +12,7 @@ on:
       - '.github/scripts/test-online-paraformer.sh'
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
@@ -27,6 +28,8 @@ on:
       - '.github/scripts/test-online-paraformer.sh'
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
+      - '.github/scripts/test-online-ctc.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
@@ -88,6 +91,14 @@ jobs:
           file build/bin/sherpa-onnx
           readelf -d build/bin/sherpa-onnx
 
+      - name: Test online CTC
+        shell: bash
+        run: |
+          export PATH=$PWD/build/bin:$PATH
+          export EXE=sherpa-onnx
+
+          .github/scripts/test-online-ctc.sh
+
       - name: Test offline TTS
         shell: bash
         run: |
diff --git a/.github/workflows/linux.yaml b/.github/workflows/linux.yaml
index 54894459d..cbe4dac97 100644
--- a/.github/workflows/linux.yaml
+++ b/.github/workflows/linux.yaml
@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - master
-      - online-wenet-ctc
     tags:
       - '*'
     paths:
diff --git a/.github/workflows/macos.yaml b/.github/workflows/macos.yaml
index e952b38a8..b73b0a504 100644
--- a/.github/workflows/macos.yaml
+++ b/.github/workflows/macos.yaml
@@ -13,6 +13,7 @@ on:
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -26,6 +27,7 @@ on:
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -96,6 +98,15 @@ jobs:
           otool -L build/bin/sherpa-onnx
           otool -l build/bin/sherpa-onnx
 
+      - name: Test online CTC
+        shell: bash
+        run: |
+          export PATH=$PWD/build/bin:$PATH
+          export EXE=sherpa-onnx
+
+          .github/scripts/test-online-ctc.sh
+
+
       - name: Test offline TTS
         shell: bash
         run: |
diff --git a/.github/workflows/windows-x64-cuda.yaml b/.github/workflows/windows-x64-cuda.yaml
index e89f0ddd4..e9eea67d0 100644
--- a/.github/workflows/windows-x64-cuda.yaml
+++ b/.github/workflows/windows-x64-cuda.yaml
@@ -12,6 +12,7 @@ on:
       - '.github/scripts/test-online-paraformer.sh'
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
@@ -25,6 +26,7 @@ on:
       - '.github/scripts/test-online-paraformer.sh'
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
@@ -66,6 +68,14 @@ jobs:
 
           ls -lh ./bin/Release/sherpa-onnx.exe
 
+      - name: Test online CTC
+        shell: bash
+        run: |
+          export PATH=$PWD/build/bin/Release:$PATH
+          export EXE=sherpa-onnx-offline.exe
+
+          .github/scripts/test-online-ctc.sh
+
       - name: Test offline TTS
         shell: bash
         run: |
diff --git a/.github/workflows/windows-x64.yaml b/.github/workflows/windows-x64.yaml
index e929d1d01..aafb952a9 100644
--- a/.github/workflows/windows-x64.yaml
+++ b/.github/workflows/windows-x64.yaml
@@ -12,6 +12,7 @@ on:
       - '.github/scripts/test-online-paraformer.sh'
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
@@ -25,6 +26,7 @@ on:
       - '.github/scripts/test-online-paraformer.sh'
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
@@ -67,6 +69,14 @@ jobs:
 
           ls -lh ./bin/Release/sherpa-onnx.exe
 
+      - name: Test online CTC
+        shell: bash
+        run: |
+          export PATH=$PWD/build/bin/Release:$PATH
+          export EXE=sherpa-onnx-offline.exe
+
+          .github/scripts/test-online-ctc.sh
+
       - name: Test offline TTS
         shell: bash
         run: |
diff --git a/.github/workflows/windows-x86.yaml b/.github/workflows/windows-x86.yaml
index 1117ea257..4ca4f4b78 100644
--- a/.github/workflows/windows-x86.yaml
+++ b/.github/workflows/windows-x86.yaml
@@ -13,6 +13,7 @@ on:
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -26,6 +27,7 @@ on:
       - '.github/scripts/test-offline-transducer.sh'
       - '.github/scripts/test-offline-ctc.sh'
       - '.github/scripts/test-offline-tts.sh'
+      - '.github/scripts/test-online-ctc.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -67,6 +69,14 @@ jobs:
 
           ls -lh ./bin/Release/sherpa-onnx.exe
 
+      - name: Test online CTC
+        shell: bash
+        run: |
+          export PATH=$PWD/build/bin/Release:$PATH
+          export EXE=sherpa-onnx-offline.exe
+
+          .github/scripts/test-online-ctc.sh
+
       - name: Test offline TTS
         shell: bash
         run: |
diff --git a/scripts/wenet/export-onnx-streaming.py b/scripts/wenet/export-onnx-streaming.py
index 27d8afde5..8ef7b2172 100755
--- a/scripts/wenet/export-onnx-streaming.py
+++ b/scripts/wenet/export-onnx-streaming.py
@@ -164,6 +164,7 @@ def main():
         dynamic_axes={
             "x": {0: "N", 1: "T"},
             "attn_cache": {2: "T"},
+            "attn_mask": {2: "T"},
             "log_probs": {0: "N"},
             "new_attn_cache": {2: "T"},
         },
diff --git a/sherpa-onnx/csrc/online-recognizer-ctc-impl.h b/sherpa-onnx/csrc/online-recognizer-ctc-impl.h
index 88e1fb4f5..85e779118 100644
--- a/sherpa-onnx/csrc/online-recognizer-ctc-impl.h
+++ b/sherpa-onnx/csrc/online-recognizer-ctc-impl.h
@@ -208,7 +208,7 @@ class OnlineRecognizerCtcImpl : public OnlineRecognizerImpl {
     states.reserve(num_states);
 
     for (int32_t i = 0; i != num_states; ++i) {
-      states[i] = std::move(out[i + 1]);
+      states.push_back(std::move(out[i + 1]));
     }
     s->SetStates(std::move(states));