diff --git a/dlls/kernel32/process.c b/dlls/kernel32/process.c
index 0a3fd70b386..b883087fd7a 100644
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -136,7 +136,8 @@ static inline BOOL is_special_env_var( const char *var )
             !strncmp( var, "HOME=", sizeof("HOME=")-1 ) ||
             !strncmp( var, "TEMP=", sizeof("TEMP=")-1 ) ||
             !strncmp( var, "TMP=", sizeof("TMP=")-1 ) ||
-            !strncmp( var, "QT_", sizeof("QT_")-1 ));
+            !strncmp( var, "QT_", sizeof("QT_")-1 ) ||
+            !strncmp( var, "VK_", sizeof("VK_")-1 ));
 }