diff --git a/doc/zmq_getsockopt.txt b/doc/zmq_getsockopt.txt
index be322475..6b38c046 100644
--- a/doc/zmq_getsockopt.txt
+++ b/doc/zmq_getsockopt.txt
@@ -745,8 +745,8 @@ The default value is 8192.
 
 [horizontal]
 Option value type:: int
-Option value unit:: N/A
-Default value:: 3
+Option value unit:: >0
+Default value:: 8192
 Applicable socket types:: all, when using TCP transport
 
 ZMQ_TCP_SEND_BUFFER: Size of the TCP receive buffer
@@ -758,8 +758,8 @@ The default value is 8192.
 
 [horizontal]
 Option value type:: int
-Option value unit:: N/A
-Default value:: 3
+Option value unit:: >0
+Default value:: 8192
 Applicable socket types:: all, when using TCP transport
 
 RETURN VALUE
diff --git a/doc/zmq_setsockopt.txt b/doc/zmq_setsockopt.txt
index 95a7aff8..f1ea98f2 100644
--- a/doc/zmq_setsockopt.txt
+++ b/doc/zmq_setsockopt.txt
@@ -1080,8 +1080,8 @@ The default value is 8192.
 
 [horizontal]
 Option value type:: int
-Option value unit:: N/A
-Default value:: 3
+Option value unit:: >0
+Default value:: 8192
 Applicable socket types:: all, when using TCP transport
 
 ZMQ_TCP_SEND_BUFFER: Size of the TCP receive buffer
@@ -1093,8 +1093,8 @@ The default value is 8192.
 
 [horizontal]
 Option value type:: int
-Option value unit:: N/A
-Default value:: 3
+Option value unit:: >0
+Default value:: 8192
 Applicable socket types:: all, when using TCP transport
 
 RETURN VALUE