diff --git a/book/src/jsonrpc-api.md b/book/src/jsonrpc-api.md
index d5f2a1f9cc..40f6d6fd98 100644
--- a/book/src/jsonrpc-api.md
+++ b/book/src/jsonrpc-api.md
@@ -254,7 +254,8 @@ After connect to the RPC PubSub websocket at `ws://<ADDRESS>/`:
 ---
 
 ### accountSubscribe
-Subscribe to an account to receive notifications when the userdata for a given account public key changes
+Subscribe to an account to receive notifications when the lamports or userdata
+for a given account public key changes
 
 ##### Parameters:
 * `string` - account Pubkey, as base-58 encoded string
@@ -279,7 +280,7 @@ Subscribe to an account to receive notifications when the userdata for a given a
 ---
 
 ### accountUnsubscribe
-Unsubscribe from account userdata change notifications
+Unsubscribe from account change notifications
 
 ##### Parameters:
 * `integer` - id of account Subscription to cancel
@@ -299,7 +300,8 @@ Unsubscribe from account userdata change notifications
 ---
 
 ### programSubscribe
-Subscribe to a program to receive notifications when the userdata for a given account owned by the program changes
+Subscribe to a program to receive notifications when the lamports or userdata
+for a given account owned by the program changes
 
 ##### Parameters:
 * `string` - program_id Pubkey, as base-58 encoded string
diff --git a/core/src/rpc_subscriptions.rs b/core/src/rpc_subscriptions.rs
index 348d77e87b..dba527a229 100644
--- a/core/src/rpc_subscriptions.rs
+++ b/core/src/rpc_subscriptions.rs
@@ -176,10 +176,8 @@ impl RpcSubscriptions {
         };
         for program_id in &programs {
             let accounts = &bank.get_program_accounts_modified_since_parent(program_id);
-            if !accounts.is_empty() {
-                for (pubkey, account) in accounts.iter() {
-                    self.check_program(program_id, pubkey, account);
-                }
+            for (pubkey, account) in accounts.iter() {
+                self.check_program(program_id, pubkey, account);
             }
         }
 
diff --git a/runtime/src/accounts.rs b/runtime/src/accounts.rs
index 6547aa3061..ebd2d1e647 100644
--- a/runtime/src/accounts.rs
+++ b/runtime/src/accounts.rs
@@ -842,21 +842,21 @@ impl Accounts {
         self.accounts_db.add_fork(fork, Some(parent));
     }
 
-    /// Slow because lock is held for 1 operation insted of many
+    /// Slow because lock is held for 1 operation instead of many
     pub fn load_slow(&self, fork: Fork, pubkey: &Pubkey) -> Option<Account> {
         self.accounts_db
             .load(fork, pubkey, true)
             .filter(|acc| acc.lamports != 0)
     }
 
-    /// Slow because lock is held for 1 operation insted of many
+    /// Slow because lock is held for 1 operation instead of many
     pub fn load_slow_no_parent(&self, fork: Fork, pubkey: &Pubkey) -> Option<Account> {
         self.accounts_db
             .load(fork, pubkey, false)
             .filter(|acc| acc.lamports != 0)
     }
 
-    /// Slow because lock is held for 1 operation insted of many
+    /// Slow because lock is held for 1 operation instead of many
     pub fn load_by_program_slow_no_parent(
         &self,
         fork: Fork,
@@ -869,7 +869,7 @@ impl Accounts {
             .collect()
     }
 
-    /// Slow because lock is held for 1 operation insted of many
+    /// Slow because lock is held for 1 operation instead of many
     pub fn store_slow(&self, fork: Fork, pubkey: &Pubkey, account: &Account) {
         self.accounts_db.store(fork, pubkey, account);
     }