diff --git a/src/reactor.cc b/src/reactor.cc
index 0e4dca51c..30e7857eb 100644
--- a/src/reactor.cc
+++ b/src/reactor.cc
@@ -23,7 +23,7 @@ Reactor::Reactor(cyclus::Context* ctx)
       discharged(false),
       latitude(0.0),
       longitude(0.0),
-      keep_packaging(1),
+      keep_packaging(true),
       coordinates(latitude, longitude) {}
 
 
diff --git a/src/reactor.h b/src/reactor.h
index d6c1cc65d..7767403fb 100644
--- a/src/reactor.h
+++ b/src/reactor.h
@@ -408,7 +408,7 @@ class Reactor : public cyclus::Facility,
   std::vector<double> pref_change_values;
 
   #pragma cyclus var { \
-    "default": 1, \
+    "default": true, \
     "tooltip": "Whether to persist packaging throughout the reactor", \
     "doc": "Boolean value about whether to keep packaging. If true, " \
            "packaging will not be stripped upon acceptance into the " \
diff --git a/src/sink.cc b/src/sink.cc
index 98d2b2189..b2b564438 100644
--- a/src/sink.cc
+++ b/src/sink.cc
@@ -14,7 +14,7 @@ Sink::Sink(cyclus::Context* ctx)
       capacity(std::numeric_limits<double>::max()),
       latitude(0.0),
       longitude(0.0),
-      keep_packaging(1),
+      keep_packaging(true),
       coordinates(latitude, longitude) {
   SetMaxInventorySize(std::numeric_limits<double>::max());}
 
diff --git a/src/sink.h b/src/sink.h
index ea1ae1732..c95daa1f7 100644
--- a/src/sink.h
+++ b/src/sink.h
@@ -256,7 +256,7 @@ class Sink
   int random_frequency_max;
 
   #pragma cyclus var { \
-    "default": 1, \
+    "default": true, \
     "tooltip": "Whether to persist packaging in the sink.", \
     "doc": "Boolean value about whether to keep packaging. If true, " \
            "packaging will not be stripped upon acceptance into the " \