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-rw-r--r--includes/cache.inc4
1 files changed, 3 insertions, 1 deletions
diff --git a/includes/cache.inc b/includes/cache.inc
index a7ad16214..21f79ba6b 100644
--- a/includes/cache.inc
+++ b/includes/cache.inc
@@ -150,7 +150,9 @@ function cache_clear_all($cid = NULL, $table = NULL, $wildcard = FALSE) {
if (!isset($cid) && !isset($table)) {
// Clear the block cache first, so stale data will
// not end up in the page cache.
- cache_clear_all(NULL, 'cache_block');
+ if (module_exists('block')) {
+ cache_clear_all(NULL, 'cache_block');
+ }
cache_clear_all(NULL, 'cache_page');
return;
}