diff --git a/visualc/vngspice.vcxproj b/visualc/vngspice.vcxproj
index d81bd3074..046bd42ee 100644
--- a/visualc/vngspice.vcxproj
+++ b/visualc/vngspice.vcxproj
@@ -126,7 +126,7 @@
       <Command>if exist $(IntDir)conf.obj del $(IntDir)conf.obj</Command>
       <!-- Check, if FFTW-Folder exist -->
       <Command Condition="Exists('$(ProjectDir)..\..\fftw-3.3-dll64')">
-        lib /machine:x64 /def:..\..\fftw-3.3-dll32\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
+        lib /machine:x64 /def:..\..\fftw-3.3-dll64\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
     </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
@@ -184,7 +184,7 @@
       <Command>if exist $(IntDir)conf.obj del $(IntDir)conf.obj</Command>
       <!-- Check, if FFTW-Folder exist -->
       <Command Condition="Exists('$(ProjectDir)..\..\fftw-3.3-dll64')">
-        lib /machine:x64 /def:..\..\fftw-3.3-dll32\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
+        lib /machine:x64 /def:..\..\fftw-3.3-dll64\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
     </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
@@ -250,7 +250,7 @@
       <Command>if exist $(IntDir)conf.obj del $(IntDir)conf.obj</Command>
       <!-- Check, if FFTW-Folder exist -->
       <Command Condition="Exists('$(ProjectDir)..\..\fftw-3.3-dll64')">
-        lib /machine:x64 /def:..\..\fftw-3.3-dll32\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
+        lib /machine:x64 /def:..\..\fftw-3.3-dll64\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
     </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
@@ -308,7 +308,7 @@
       <Command>if exist $(IntDir)conf.obj del $(IntDir)conf.obj</Command>
       <!-- Check, if FFTW-Folder exist -->
       <Command Condition="Exists('$(ProjectDir)..\..\fftw-3.3-dll64')">
-        lib /machine:x64 /def:..\..\fftw-3.3-dll32\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
+        lib /machine:x64 /def:..\..\fftw-3.3-dll64\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
     </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
@@ -372,7 +372,7 @@
       <Command>if exist $(IntDir)conf.obj del $(IntDir)conf.obj</Command>
       <!-- Check, if FFTW-Folder exist -->
       <Command Condition="Exists('$(ProjectDir)..\..\fftw-3.3-dll64')">
-        lib /machine:x64 /def:..\..\fftw-3.3-dll32\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
+        lib /machine:x64 /def:..\..\fftw-3.3-dll64\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
     </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
@@ -440,7 +440,7 @@
       <Command>if exist $(IntDir)conf.obj del $(IntDir)conf.obj</Command>
       <!-- Check, if FFTW-Folder exist -->
       <Command Condition="Exists('$(ProjectDir)..\..\fftw-3.3-dll64')">
-        lib /machine:x64 /def:..\..\fftw-3.3-dll32\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
+        lib /machine:x64 /def:..\..\fftw-3.3-dll64\libfftw3-3.def /out:$(IntDir)libfftw3-3.lib</Command>
     </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>