diff --git a/SignalServiceKit/src/Messages/Interactions/OWSContact.h b/SignalServiceKit/src/Messages/Interactions/OWSContact.h
index 46e796931..905c14147 100644
--- a/SignalServiceKit/src/Messages/Interactions/OWSContact.h
+++ b/SignalServiceKit/src/Messages/Interactions/OWSContact.h
@@ -13,6 +13,8 @@ NS_ASSUME_NONNULL_BEGIN
 @class TSAttachment;
 @class YapDatabaseReadWriteTransaction;
 
+extern BOOL kIsSendingContactSharesEnabled;
+
 typedef NS_ENUM(NSUInteger, OWSContactPhoneType) {
     OWSContactPhoneType_Home = 1,
     OWSContactPhoneType_Mobile,
diff --git a/SignalServiceKit/src/Messages/Interactions/OWSContact.m b/SignalServiceKit/src/Messages/Interactions/OWSContact.m
index 0c4800b01..b07c0b0e6 100644
--- a/SignalServiceKit/src/Messages/Interactions/OWSContact.m
+++ b/SignalServiceKit/src/Messages/Interactions/OWSContact.m
@@ -14,6 +14,8 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
+BOOL kIsSendingContactSharesEnabled = YES;
+
 @interface OWSContactPhoneNumber ()
 
 @property (nonatomic) OWSContactPhoneType phoneType;