diff --git a/docs/libcurl/opts/CURLOPT_TCP_KEEPALIVE.3 b/docs/libcurl/opts/CURLOPT_TCP_KEEPALIVE.3
index 5ddadd093..941cc4882 100644
--- a/docs/libcurl/opts/CURLOPT_TCP_KEEPALIVE.3
+++ b/docs/libcurl/opts/CURLOPT_TCP_KEEPALIVE.3
@@ -50,7 +50,7 @@ if(curl) {
   curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);
 
   /* interval time between keep-alive probes: 60 seconds */
-  curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 60L);
+  curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);
 
   curl_easy_perform(curl);
 }
diff --git a/docs/libcurl/opts/CURLOPT_TCP_KEEPIDLE.3 b/docs/libcurl/opts/CURLOPT_TCP_KEEPIDLE.3
index 843f65057..d60a3dffb 100644
--- a/docs/libcurl/opts/CURLOPT_TCP_KEEPIDLE.3
+++ b/docs/libcurl/opts/CURLOPT_TCP_KEEPIDLE.3
@@ -48,7 +48,7 @@ if(curl) {
   curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);
 
   /* interval time between keep-alive probes: 60 seconds */
-  curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 60L);
+  curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);
 
   curl_easy_perform(curl);
 }
diff --git a/docs/libcurl/opts/CURLOPT_TCP_KEEPINTVL.3 b/docs/libcurl/opts/CURLOPT_TCP_KEEPINTVL.3
index ee4d53543..42bc0b4ed 100644
--- a/docs/libcurl/opts/CURLOPT_TCP_KEEPINTVL.3
+++ b/docs/libcurl/opts/CURLOPT_TCP_KEEPINTVL.3
@@ -46,7 +46,7 @@ if(curl) {
   curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);
 
   /* interval time between keep-alive probes: 60 seconds */
-  curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 60L);
+  curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);
 
   curl_easy_perform(curl);
 }