diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
index c57fa686..893972b5 100644
--- a/plugin/syntastic.vim
+++ b/plugin/syntastic.vim
@@ -19,7 +19,7 @@ if has('reltime')
     lockvar! g:syntastic_start
 endif
 
-let g:syntastic_version = '3.4.0-44'
+let g:syntastic_version = '3.4.0-45'
 lockvar g:syntastic_version
 
 " Sanity checks {{{1
diff --git a/syntax_checkers/python/flake8.vim b/syntax_checkers/python/flake8.vim
index 61d55cc9..ebc484f2 100644
--- a/syntax_checkers/python/flake8.vim
+++ b/syntax_checkers/python/flake8.vim
@@ -19,7 +19,8 @@ function! SyntaxCheckers_python_flake8_GetHighlightRegex(item)
 endfunction
 
 function! SyntaxCheckers_python_flake8_GetLocList() dict
-    let makeprg = self.makeprgBuild({})
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb') })
 
     let errorformat =
         \ '%E%f:%l: could not compile,%-Z%p^,' .
diff --git a/syntax_checkers/python/frosted.vim b/syntax_checkers/python/frosted.vim
index 5c47de5c..e96a8cc1 100644
--- a/syntax_checkers/python/frosted.vim
+++ b/syntax_checkers/python/frosted.vim
@@ -19,7 +19,9 @@ let s:save_cpo = &cpo
 set cpo&vim
 
 function! SyntaxCheckers_python_frosted_GetLocList() dict
-    let makeprg = self.makeprgBuild({ 'args_after': '-vb' })
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb'),
+        \ 'args_after': '-vb' })
 
     let errorformat =
         \ '%f:%l:%c:%m,' .
diff --git a/syntax_checkers/python/pep257.vim b/syntax_checkers/python/pep257.vim
index 7bd2d91d..10b47e09 100644
--- a/syntax_checkers/python/pep257.vim
+++ b/syntax_checkers/python/pep257.vim
@@ -14,7 +14,8 @@ let s:save_cpo = &cpo
 set cpo&vim
 
 function! SyntaxCheckers_python_pep257_GetLocList() dict
-    let makeprg = self.makeprgBuild({})
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb') })
 
     let errorformat =
         \ '%E%f:%l:%c%\%.%\%.%\d%\+:%\d%\+: %m,' .
diff --git a/syntax_checkers/python/pep8.vim b/syntax_checkers/python/pep8.vim
index 310746b3..64c9e640 100644
--- a/syntax_checkers/python/pep8.vim
+++ b/syntax_checkers/python/pep8.vim
@@ -21,7 +21,8 @@ let s:save_cpo = &cpo
 set cpo&vim
 
 function! SyntaxCheckers_python_pep8_GetLocList() dict
-    let makeprg = self.makeprgBuild({})
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb') })
 
     let errorformat = '%f:%l:%c: %m'
 
diff --git a/syntax_checkers/python/py3kwarn.vim b/syntax_checkers/python/py3kwarn.vim
index 5ceb51ab..1a4465e0 100644
--- a/syntax_checkers/python/py3kwarn.vim
+++ b/syntax_checkers/python/py3kwarn.vim
@@ -14,7 +14,8 @@ let s:save_cpo = &cpo
 set cpo&vim
 
 function! SyntaxCheckers_python_py3kwarn_GetLocList() dict
-    let makeprg = self.makeprgBuild({})
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb') })
 
     let errorformat = '%W%f:%l:%c: %m'
 
diff --git a/syntax_checkers/python/pyflakes.vim b/syntax_checkers/python/pyflakes.vim
index 5903b2ef..869aa0ab 100644
--- a/syntax_checkers/python/pyflakes.vim
+++ b/syntax_checkers/python/pyflakes.vim
@@ -40,7 +40,8 @@ function! SyntaxCheckers_python_pyflakes_GetHighlightRegex(i)
 endfunction
 
 function! SyntaxCheckers_python_pyflakes_GetLocList() dict
-    let makeprg = self.makeprgBuild({})
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb') })
 
     let errorformat =
         \ '%E%f:%l: could not compile,'.
diff --git a/syntax_checkers/python/pylama.vim b/syntax_checkers/python/pylama.vim
index 25219d77..b8611814 100644
--- a/syntax_checkers/python/pylama.vim
+++ b/syntax_checkers/python/pylama.vim
@@ -23,7 +23,9 @@ function! SyntaxCheckers_python_pylama_GetHighlightRegex(item)
 endfunction
 
 function! SyntaxCheckers_python_pylama_GetLocList() dict
-    let makeprg = self.makeprgBuild({ 'args_after': '-f pep8' })
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb'),
+        \ 'args_after': '-f pep8' })
 
     " TODO: "WARNING:pylama:..." messages are probably a logging bug
     let errorformat =
diff --git a/syntax_checkers/python/pylint.vim b/syntax_checkers/python/pylint.vim
index 4c4b88e0..131ca482 100644
--- a/syntax_checkers/python/pylint.vim
+++ b/syntax_checkers/python/pylint.vim
@@ -23,6 +23,7 @@ endfunction
 
 function! SyntaxCheckers_python_pylint_GetLocList() dict
     let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb'),
         \ 'args_after': (s:pylint_new ? '-f text --msg-template="{path}:{line}:{column}:{C}: [{symbol}] {msg}" -r n' : '-f parseable -r n -i y') })
 
     let errorformat =
diff --git a/syntax_checkers/python/python.vim b/syntax_checkers/python/python.vim
index eced4d30..e962065d 100644
--- a/syntax_checkers/python/python.vim
+++ b/syntax_checkers/python/python.vim
@@ -26,7 +26,9 @@ function! SyntaxCheckers_python_python_IsAvailable() dict
 endfunction
 
 function! SyntaxCheckers_python_python_GetLocList() dict
-    let makeprg = self.makeprgBuild({ 'exe': [self.getExec(), s:compiler] })
+    let makeprg = self.makeprgBuild({
+        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb'),
+        \ 'exe': [self.getExec(), s:compiler] })
 
     let errorformat = '%E%f:%l:%c: %m'