diff --git a/src/lib/netlist/plib/ptypes.h b/src/lib/netlist/plib/ptypes.h
index 1ae9b1edeb1..971a509406c 100644
--- a/src/lib/netlist/plib/ptypes.h
+++ b/src/lib/netlist/plib/ptypes.h
@@ -10,6 +10,7 @@
 
 #include "pconfig.h"
 
+#include <cstdint>
 #include <limits>
 #include <string>
 #include <type_traits>
diff --git a/src/osd/modules/monitor/monitor_module.h b/src/osd/modules/monitor/monitor_module.h
index 583f47d4b34..38e7e02fec2 100644
--- a/src/osd/modules/monitor/monitor_module.h
+++ b/src/osd/modules/monitor/monitor_module.h
@@ -8,6 +8,7 @@
 #ifndef MAME_OSD_MODULES_MONITOR_MONITORMODULE_H
 #define MAME_OSD_MODULES_MONITOR_MONITORMODULE_H
 
+#include <cstdint>
 #include <vector>
 
 #include "modules/osdmodule.h"
diff --git a/src/osd/modules/render/bgfx/frameparameter.h b/src/osd/modules/render/bgfx/frameparameter.h
index 0ac3868bc01..2a1e8f6094b 100644
--- a/src/osd/modules/render/bgfx/frameparameter.h
+++ b/src/osd/modules/render/bgfx/frameparameter.h
@@ -13,6 +13,7 @@
 
 #include "parameter.h"
 
+#include <cstdint>
 #include <string>
 
 class bgfx_frame_parameter : public bgfx_parameter
diff --git a/src/osd/modules/render/bgfx/slider.h b/src/osd/modules/render/bgfx/slider.h
index fd64351ebfc..89a713da4b3 100644
--- a/src/osd/modules/render/bgfx/slider.h
+++ b/src/osd/modules/render/bgfx/slider.h
@@ -14,6 +14,7 @@
 #include <bgfx/bgfx.h>
 
 #include <cmath>
+#include <cstdint>
 #include <memory>
 #include <string>
 #include <vector>