diff --git a/clientscr/mac_saver_module.cpp b/clientscr/mac_saver_module.cpp
index 0955c7c4c1..ef0268b362 100644
--- a/clientscr/mac_saver_module.cpp
+++ b/clientscr/mac_saver_module.cpp
@@ -49,6 +49,7 @@ extern "C" {
 #include "Mac_Saver_Module.h"
 #include "screensaver.h"
 #include "diagnostics.h"
+#include "str_replace.h"
 
 //#include <drivers/event_status_driver.h>
 
diff --git a/mac_installer/Installer.cpp b/mac_installer/Installer.cpp
index 265f41407d..6b79cb982b 100644
--- a/mac_installer/Installer.cpp
+++ b/mac_installer/Installer.cpp
@@ -31,6 +31,7 @@
 #include <sys/stat.h>
 
 #include "str_util.h"
+#include "str_replace.h"
 
 #define boinc_master_user_name "boinc_master"
 #define boinc_master_group_name "boinc_master"
diff --git a/mac_installer/WaitPermissions.cpp b/mac_installer/WaitPermissions.cpp
index ed0dec9785..9283328254 100644
--- a/mac_installer/WaitPermissions.cpp
+++ b/mac_installer/WaitPermissions.cpp
@@ -25,6 +25,7 @@
 #include <unistd.h>	// getuid
 #include <dirent.h>
 #include "str_util.h"
+#include "str_replace.h"
 
 void print_to_log_file(const char *format, ...);
 void strip_cr(char *buf);