diff --git a/visualc/sharedspice.vcxproj b/visualc/sharedspice.vcxproj
index bce301c2a..c18f68813 100644
--- a/visualc/sharedspice.vcxproj
+++ b/visualc/sharedspice.vcxproj
@@ -407,7 +407,7 @@ lib /machine:x64 /def:..\..\fftw-3.3-dll64\libfftw3-3.def /out:$(IntDir)libfftw3
       <CompileAs>Default</CompileAs>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp14</LanguageStandard>
-      <AdditionalOptions>/openmp:llvm %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions>%(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
       <AdditionalDependencies>psapi.lib;KLU_COMPLEX.lib;%(AdditionalDependencies)</AdditionalDependencies>
diff --git a/visualc/vngspice.vcxproj b/visualc/vngspice.vcxproj
index 476250aa7..5281546d0 100644
--- a/visualc/vngspice.vcxproj
+++ b/visualc/vngspice.vcxproj
@@ -383,7 +383,7 @@
       <CompileAs>Default</CompileAs>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp14</LanguageStandard>
-      <AdditionalOptions>/openmp:llvm %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions>%(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
       <AdditionalDependencies>psapi.lib;KLU_COMPLEX.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -2896,4 +2896,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>
\ No newline at end of file