diff --git a/libpkgconf/cache.c b/libpkgconf/cache.c
index 4fe2056..03ee0e4 100644
--- a/libpkgconf/cache.c
+++ b/libpkgconf/cache.c
@@ -186,8 +186,11 @@ pkgconf_cache_remove(pkgconf_client_t *client, pkgconf_pkg_t *pkg)
 	}
 
 	client->cache_count--;
-	client->cache_table = pkgconf_reallocarray(client->cache_table,
-		client->cache_count, sizeof(void *));
+	if (client->cache_count == 0)
+		client->cache_table = NULL;
+	else
+		client->cache_table = pkgconf_reallocarray(client->cache_table,
+			client->cache_count, sizeof(void *));
 }
 
 /*