diff --git a/conf/e4/config.xml b/conf/e4/config.xml
index 5fd74d7d0..b250e88ff 100644
--- a/conf/e4/config.xml
+++ b/conf/e4/config.xml
@@ -118,6 +118,7 @@
     <param name="study.speedup" value="0"/>
     <param name="world.era" value="3"/>
     <param name="rules.migrants" value="0"/>
+    <param name="rules.reserve.twophase" value="1"/>
     <param name="rules.transfermen" value="0"/>
     <param name="rules.stealth.faction" value="1"/>
     <param name="rules.stealth.anon_battle" value="0"/>
diff --git a/src/bind_process.c b/src/bind_process.c
index 19c63ca14..e6018e69f 100755
--- a/src/bind_process.c
+++ b/src/bind_process.c
@@ -223,7 +223,7 @@ void process_explain(void) {
 }
 
 void process_reserve(void) {
-    int rule = get_param_int(global.parameters, "rule.reserve.twophase", 0);
+    int rule = get_param_int(global.parameters, "rules.reserve.twophase", 0);
     if (rule) {
         process_cmd(K_RESERVE, reserve_self, 0);
     }