style fix
diff --git a/src/os/unix/ngx_readv_chain.c b/src/os/unix/ngx_readv_chain.c
index f2dd82c..b65a0d7 100644
--- a/src/os/unix/ngx_readv_chain.c
+++ b/src/os/unix/ngx_readv_chain.c
@@ -158,7 +158,7 @@
 
     rev->ready = 0;
 
-    if (n == NGX_ERROR){
+    if (n == NGX_ERROR) {
         c->read->error = 1;
     }
 
@@ -247,7 +247,7 @@
 
     rev->ready = 0;
 
-    if (n == NGX_ERROR){
+    if (n == NGX_ERROR) {
         c->read->error = 1;
     }
 
diff --git a/src/os/unix/ngx_recv.c b/src/os/unix/ngx_recv.c
index f4d6a2b..316e051 100644
--- a/src/os/unix/ngx_recv.c
+++ b/src/os/unix/ngx_recv.c
@@ -113,7 +113,7 @@
 
     rev->ready = 0;
 
-    if (n == NGX_ERROR){
+    if (n == NGX_ERROR) {
         rev->error = 1;
     }
 
@@ -169,7 +169,7 @@
 
     rev->ready = 0;
 
-    if (n == NGX_ERROR){
+    if (n == NGX_ERROR) {
         rev->error = 1;
     }
 
diff --git a/src/os/unix/ngx_udp_recv.c b/src/os/unix/ngx_udp_recv.c
index 25f0738..fdcd7fa 100644
--- a/src/os/unix/ngx_udp_recv.c
+++ b/src/os/unix/ngx_udp_recv.c
@@ -60,7 +60,7 @@
 
     rev->ready = 0;
 
-    if (n == NGX_ERROR){
+    if (n == NGX_ERROR) {
         rev->error = 1;
     }
 
@@ -104,7 +104,7 @@
 
     rev->ready = 0;
 
-    if (n == NGX_ERROR){
+    if (n == NGX_ERROR) {
         rev->error = 1;
     }