diff --git a/.github/workflows/kcpp-build-release-win-cuda.yaml b/.github/workflows/kcpp-build-release-win-cuda.yaml
index e63ace77d..ab3e00800 100644
--- a/.github/workflows/kcpp-build-release-win-cuda.yaml
+++ b/.github/workflows/kcpp-build-release-win-cuda.yaml
@@ -25,7 +25,11 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j 2
+          if [ "${env:NUMBER_OF_PROCESSORS}" -gt 1 ]; then
+            cmake --build . --config Release -j 2
+          else
+            cmake --build . --config Release -j 1
+          fi
 
       - name: Save artifact
         uses: actions/upload-artifact@v3
diff --git a/.github/workflows/kcpp-build-release-win-cuda12.yaml b/.github/workflows/kcpp-build-release-win-cuda12.yaml
index c7980bbc4..a62b60c07 100644
--- a/.github/workflows/kcpp-build-release-win-cuda12.yaml
+++ b/.github/workflows/kcpp-build-release-win-cuda12.yaml
@@ -25,7 +25,11 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j 2
+          if [ "${env:NUMBER_OF_PROCESSORS}" -gt 1 ]; then
+            cmake --build . --config Release -j 2
+          else
+            cmake --build . --config Release -j 1
+          fi
 
       - name: Save artifact
         uses: actions/upload-artifact@v3
diff --git a/.github/workflows/kcpp-build-release-win-full-cu12.yaml b/.github/workflows/kcpp-build-release-win-full-cu12.yaml
index 4bd545b6c..0971b99c3 100644
--- a/.github/workflows/kcpp-build-release-win-full-cu12.yaml
+++ b/.github/workflows/kcpp-build-release-win-full-cu12.yaml
@@ -58,7 +58,11 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j 2
+          if [ "${env:NUMBER_OF_PROCESSORS}" -gt 1 ]; then
+            cmake --build . --config Release -j 2
+          else
+            cmake --build . --config Release -j 1
+          fi
           mv bin/Release/koboldcpp_cublas.dll ../koboldcpp_cublas.dll
           cd ..
 
diff --git a/.github/workflows/kcpp-build-release-win-full.yaml b/.github/workflows/kcpp-build-release-win-full.yaml
index 576485934..0ac79ccc2 100644
--- a/.github/workflows/kcpp-build-release-win-full.yaml
+++ b/.github/workflows/kcpp-build-release-win-full.yaml
@@ -58,7 +58,11 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j 2
+          if [ "${env:NUMBER_OF_PROCESSORS}" -gt 1 ]; then
+            cmake --build . --config Release -j 2
+          else
+            cmake --build . --config Release -j 1
+          fi
           mv bin/Release/koboldcpp_cublas.dll ../koboldcpp_cublas.dll
           cd ..
 
diff --git a/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml b/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml
index 3b8ae778d..d4ee51852 100644
--- a/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml
+++ b/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml
@@ -58,7 +58,11 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DLLAMA_AVX2=OFF -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j 2
+          if [ "${env:NUMBER_OF_PROCESSORS}" -gt 1 ]; then
+            cmake --build . --config Release -j 2
+          else
+            cmake --build . --config Release -j 1
+          fi
           mv bin/Release/koboldcpp_cublas.dll ../koboldcpp_cublas.dll
           cd ..