diff --git a/src/libinput.c b/src/libinput.c
index a05148f5..79e4863c 100644
--- a/src/libinput.c
+++ b/src/libinput.c
@@ -1101,7 +1101,7 @@ libinput_tool_get_type(struct libinput_tool *tool)
 	return tool->type;
 }
 
-LIBINPUT_EXPORT uint32_t
+LIBINPUT_EXPORT uint64_t
 libinput_tool_get_tool_id(struct libinput_tool *tool)
 {
 	return tool->tool_id;
diff --git a/src/libinput.h b/src/libinput.h
index 3962b9d6..018dbd4a 100644
--- a/src/libinput.h
+++ b/src/libinput.h
@@ -1583,7 +1583,7 @@ libinput_tool_get_type(struct libinput_tool *tool);
  *
  * @see libinput_tool_get_type
  */
-uint32_t
+uint64_t
 libinput_tool_get_tool_id(struct libinput_tool *tool);
 
 /**