diff --git a/PCbuild/_tkinter.dsp b/PCbuild/_tkinter.dsp
index 272eac52f17..e47c72eea57 100644
--- a/PCbuild/_tkinter.dsp
+++ b/PCbuild/_tkinter.dsp
@@ -42,8 +42,9 @@ RSC=rc.exe
 # PROP Intermediate_Dir "temp-release"
 # PROP Ignore_Export_Lib 0
 # PROP Target_Dir ""
+F90=df.exe
 # ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /FD /c
-# ADD CPP /nologo /MD /W3 /GX /Zi /O2 /I "..\Include" /I "..\PC" /I "C:\Program Files\Tcl\include" /I "D:\tcl" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "WITH_APPINIT" /YX /FD /c
+# ADD CPP /nologo /MD /W3 /GX /Zi /O2 /I "..\Include" /I "..\PC" /I "C:\Program Files\Tcl\include" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "WITH_APPINIT" /YX /FD /c
 # ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /o NUL /win32
 # ADD MTL /nologo /D "NDEBUG" /mktyplib203 /o NUL /win32
 # ADD BASE RSC /l 0x409 /d "NDEBUG"
@@ -69,8 +70,9 @@ LINK32=link.exe
 # PROP Intermediate_Dir "temp-debug"
 # PROP Ignore_Export_Lib 0
 # PROP Target_Dir ""
+F90=df.exe
 # ADD BASE CPP /nologo /MTd /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /YX /FD /c
-# ADD CPP /nologo /MDd /W3 /Gm /GX /Zi /Od /I "..\Include" /I "..\PC" /I "C:\Program Files\Tcl\include" /I "D:\tcl" /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "WITH_APPINIT" /YX /FD /c
+# ADD CPP /nologo /MDd /W3 /Gm /GX /Zi /Od /I "..\Include" /I "..\PC" /I "C:\Program Files\Tcl\include" /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "WITH_APPINIT" /YX /FD /c
 # ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /o NUL /win32
 # ADD MTL /nologo /D "_DEBUG" /mktyplib203 /o NUL /win32
 # ADD BASE RSC /l 0x409 /d "_DEBUG"