diff --git a/Xext/namespace/config.c b/Xext/namespace/config.c
index 5b9c787233..bd600d2528 100644
--- a/Xext/namespace/config.c
+++ b/Xext/namespace/config.c
@@ -78,7 +78,7 @@ static void parseLine(char *line, struct Xnamespace **walk_ns)
         *c1 = 0;
 
     /* get the first token */
-    char *token = strtok(line, " ");
+    char *token = strtok(line, " \t");
 
     if (token == NULL)
         return;
@@ -101,7 +101,7 @@ static void parseLine(char *line, struct Xnamespace **walk_ns)
 
     if (strcmp(token, "auth") == 0)
     {
-        token = strtok(NULL, " ");
+        token = strtok(NULL, " \t");
         if (token == NULL)
             return;
 
@@ -132,7 +132,7 @@ static void parseLine(char *line, struct Xnamespace **walk_ns)
 
     if (strcmp(token, "allow") == 0)
     {
-        while ((token = strtok(NULL, " ")) != NULL)
+        while ((token = strtok(NULL, " \t")) != NULL)
         {
             if (strcmp(token, "mouse-motion") == 0)
                 curr->allowMouseMotion = TRUE;