diff --git a/visualc-shared/sharedspice.vcproj b/visualc-shared/sharedspice.vcproj
index 07dbeaf53..9ed79f2a9 100644
--- a/visualc-shared/sharedspice.vcproj
+++ b/visualc-shared/sharedspice.vcproj
@@ -594,6 +594,10 @@
RelativePath="..\src\frontend\outitf.h"
>
+
+
diff --git a/visualc/vngspice.vcproj b/visualc/vngspice.vcproj
index f4b332489..2ac72001b 100644
--- a/visualc/vngspice.vcproj
+++ b/visualc/vngspice.vcproj
@@ -1404,6 +1404,10 @@
RelativePath="..\src\frontend\outitf.h"
>
+
+
diff --git a/visualc/vngspice.vcxproj b/visualc/vngspice.vcxproj
index 567dc0c36..8f50d3785 100644
--- a/visualc/vngspice.vcxproj
+++ b/visualc/vngspice.vcxproj
@@ -914,6 +914,7 @@
+
diff --git a/visualc/vngspice_fftw.vcproj b/visualc/vngspice_fftw.vcproj
index 4c6e8e3a2..237b567f4 100644
--- a/visualc/vngspice_fftw.vcproj
+++ b/visualc/vngspice_fftw.vcproj
@@ -1427,6 +1427,10 @@
RelativePath="..\src\frontend\outitf.h"
>
+
+
diff --git a/visualc/vngspice_fftw_vc10.vcxproj b/visualc/vngspice_fftw_vc10.vcxproj
index 8510bafce..046ff2bb4 100644
--- a/visualc/vngspice_fftw_vc10.vcxproj
+++ b/visualc/vngspice_fftw_vc10.vcxproj
@@ -897,6 +897,7 @@
+