diff --git a/vlib/picoev/loop_default.c.v b/vlib/picoev/loop_default.c.v
index 685dc02283..55ce785394 100644
--- a/vlib/picoev/loop_default.c.v
+++ b/vlib/picoev/loop_default.c.v
@@ -76,13 +76,14 @@ fn (mut pv Picoev) poll_once(max_wait_in_sec int) int {
 		// Iterates through file descriptors and calls their callbacks for triggered events
 		for target in pv.file_descriptors {
 			if target.loop_id == pv.loop.id {
-				// vfmt off
-				read_events := (
-					(if C.FD_ISSET(target.fd, &readfds) != 0 { picoev_read } else { 0 })
-						|
-					(if C.FD_ISSET(target.fd, &writefds) != 0 { picoev_write } else { 0 })
-				)
-				// vfmt on
+				mut read_events := 0
+				if C.FD_ISSET(target.fd, &readfds) != 0 {
+					read_events |= picoev_read
+				}
+				if C.FD_ISSET(target.fd, &writefds) != 0 {
+					read_events |= picoev_write
+				}
+
 				if read_events != 0 {
 					$if trace_fd ? {
 						eprintln('do callback ${target.fd}')
diff --git a/vlib/picoev/loop_freebsd.c.v b/vlib/picoev/loop_freebsd.c.v
index 139756f4ed..5700f8233a 100644
--- a/vlib/picoev/loop_freebsd.c.v
+++ b/vlib/picoev/loop_freebsd.c.v
@@ -51,13 +51,15 @@ pub fn create_kqueue_loop(id int) !&KqueueLoop {
 // ev_set sets a new `kevent` with file descriptor `index`
 @[inline]
 pub fn (mut pv Picoev) ev_set(index int, operation int, events int) {
-	// vfmt off
-	filter := i16(
-		(if events & picoev_read != 0 { C.EVFILT_READ } else { 0 })
-			|
-		(if events & picoev_write != 0 { C.EVFILT_WRITE } else { 0 })
-	)
-	// vfmt on
+	mut filter := 0
+	if events & picoev_read != 0 {
+		filter |= C.EVFILT_READ
+	}
+	if events & picoev_write != 0 {
+		filter |= C.EVFILT_WRITE
+	}
+	filter = i16(filter)
+
 	C.EV_SET(&pv.loop.changelist[index], pv.loop.changed_fds, filter, operation, 0, 0,
 		0)
 }
diff --git a/vlib/picoev/loop_linux.c.v b/vlib/picoev/loop_linux.c.v
index 36add2e587..e8b9a6363b 100644
--- a/vlib/picoev/loop_linux.c.v
+++ b/vlib/picoev/loop_linux.c.v
@@ -116,13 +116,14 @@ fn (mut pv Picoev) poll_once(max_wait_in_sec int) int {
 			assert event.data.fd < max_fds
 		}
 		if pv.loop.id == target.loop_id && target.events & picoev_readwrite != 0 {
-			// vfmt off
-			read_events := (
-				(if event.events & u32(C.EPOLLIN) != 0 { picoev_read } else { 0 })
-					|
-				(if event.events & u32(C.EPOLLOUT) != 0 { picoev_write } else { 0 })
-			)
-			// vfmt on
+			mut read_events := 0
+			if event.events & u32(C.EPOLLIN) != 0 {
+				read_events |= picoev_read
+			}
+			if event.events & u32(C.EPOLLOUT) != 0 {
+				read_events |= picoev_write
+			}
+
 			if read_events != 0 {
 				// do callback!
 				unsafe { target.cb(event.data.fd, read_events, &pv) }
diff --git a/vlib/picoev/loop_macos.c.v b/vlib/picoev/loop_macos.c.v
index 139756f4ed..5700f8233a 100644
--- a/vlib/picoev/loop_macos.c.v
+++ b/vlib/picoev/loop_macos.c.v
@@ -51,13 +51,15 @@ pub fn create_kqueue_loop(id int) !&KqueueLoop {
 // ev_set sets a new `kevent` with file descriptor `index`
 @[inline]
 pub fn (mut pv Picoev) ev_set(index int, operation int, events int) {
-	// vfmt off
-	filter := i16(
-		(if events & picoev_read != 0 { C.EVFILT_READ } else { 0 })
-			|
-		(if events & picoev_write != 0 { C.EVFILT_WRITE } else { 0 })
-	)
-	// vfmt on
+	mut filter := 0
+	if events & picoev_read != 0 {
+		filter |= C.EVFILT_READ
+	}
+	if events & picoev_write != 0 {
+		filter |= C.EVFILT_WRITE
+	}
+	filter = i16(filter)
+
 	C.EV_SET(&pv.loop.changelist[index], pv.loop.changed_fds, filter, operation, 0, 0,
 		0)
 }