diff --git a/man/event-quick-child.c b/man/event-quick-child.c
index 8195efbaa5..b95ee1bef6 100644
--- a/man/event-quick-child.c
+++ b/man/event-quick-child.c
@@ -3,7 +3,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <unistd.h>
-#include <sd-event.h>
+#include <systemd/sd-event.h>
 
 int main(int argc, char **argv) {
   pid_t pid = fork();
diff --git a/man/hwdb-usb-device.c b/man/hwdb-usb-device.c
index 3ac012070e..facd8c43b2 100644
--- a/man/hwdb-usb-device.c
+++ b/man/hwdb-usb-device.c
@@ -2,7 +2,7 @@
 
 #include <stdio.h>
 #include <stdint.h>
-#include <sd-hwdb.h>
+#include <systemd/sd-hwdb.h>
 
 int print_usb_properties(uint16_t vid, uint16_t pid) {
   char match[128];
diff --git a/man/path-documents.c b/man/path-documents.c
index a357dd659a..994f20bcf4 100644
--- a/man/path-documents.c
+++ b/man/path-documents.c
@@ -2,7 +2,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#include <sd-path.h>
+#include <systemd/sd-path.h>
 
 int main(void) {
   int r;
diff --git a/man/sd_bus_error-example.c b/man/sd_bus_error-example.c
index 9b162eb6cc..4b5217c433 100644
--- a/man/sd_bus_error-example.c
+++ b/man/sd_bus_error-example.c
@@ -3,7 +3,7 @@
 #include <errno.h>
 #include <string.h>
 #include <unistd.h>
-#include <sd-bus.h>
+#include <systemd/sd-bus.h>
 
 int writer_with_negative_errno_return(int fd, sd_bus_error *error) {
   const char *message = "Hello, World!\n";