diff --git a/ale_linters/pony/ponyc.vim b/ale_linters/pony/ponyc.vim
index 4120df5..b332905 100644
--- a/ale_linters/pony/ponyc.vim
+++ b/ale_linters/pony/ponyc.vim
@@ -8,7 +8,7 @@ function! ale_linters#pony#ponyc#GetExecutable(buffer) abort
 endfunction
 
 function! ale_linters#pony#ponyc#GetCommand(buffer) abort
-    return ale_linters#pony#ponyc#GetExecutable(a:buffer)
+    return ale#Escape(ale_linters#pony#ponyc#GetExecutable(a:buffer))
     \   . ' ' . ale#Var(a:buffer, 'pony_ponyc_options')
 endfunction
 
diff --git a/test/command_callback/test_pony_ponyc_command_callbacks.vader b/test/command_callback/test_pony_ponyc_command_callbacks.vader
index e48346e..7acbfa9 100644
--- a/test/command_callback/test_pony_ponyc_command_callbacks.vader
+++ b/test/command_callback/test_pony_ponyc_command_callbacks.vader
@@ -13,11 +13,11 @@ After:
 
 Execute(The options should be used in the command):
   AssertEqual
-  \ 'ponyc --pass paint',
+  \ ale#Escape('ponyc') . ' --pass paint',
   \ ale_linters#pony#ponyc#GetCommand(bufnr(''))
 
   let b:ale_pony_ponyc_options = 'foobar'
 
   AssertEqual
-  \ 'ponyc foobar',
+  \ ale#Escape('ponyc') . ' foobar',
   \ ale_linters#pony#ponyc#GetCommand(bufnr(''))