diff --git a/src/core/wee-hook.c b/src/core/wee-hook.c
index b00ad359d..e612acd22 100644
--- a/src/core/wee-hook.c
+++ b/src/core/wee-hook.c
@@ -25,6 +25,7 @@
 #endif
 
 #include <stdlib.h>
+#include <stdio.h>
 #include <stddef.h>
 #include <unistd.h>
 #include <string.h>
diff --git a/src/core/wee-log.h b/src/core/wee-log.h
index d2231f9a4..214d8164b 100644
--- a/src/core/wee-log.h
+++ b/src/core/wee-log.h
@@ -20,6 +20,8 @@
 #ifndef WEECHAT_LOG_H
 #define WEECHAT_LOG_H
 
+#include <stdio.h>
+
 extern char *weechat_log_filename;
 extern FILE *weechat_log_file;
 extern int weechat_log_use_time;
diff --git a/src/core/wee-string.c b/src/core/wee-string.c
index b6765d9b7..83ad9c447 100644
--- a/src/core/wee-string.c
+++ b/src/core/wee-string.c
@@ -24,6 +24,7 @@
 #endif
 
 #include <stdlib.h>
+#include <stdio.h>
 #include <errno.h>
 #include <stdarg.h>
 #include <string.h>
diff --git a/src/core/wee-string.h b/src/core/wee-string.h
index 77af5b8d0..5380174e9 100644
--- a/src/core/wee-string.h
+++ b/src/core/wee-string.h
@@ -20,6 +20,7 @@
 #ifndef WEECHAT_STRING_H
 #define WEECHAT_STRING_H
 
+#include <stdio.h>
 #include <stdint.h>
 #include <regex.h>
 
diff --git a/src/core/wee-upgrade-file.h b/src/core/wee-upgrade-file.h
index 4b328b730..c40c0ef88 100644
--- a/src/core/wee-upgrade-file.h
+++ b/src/core/wee-upgrade-file.h
@@ -20,6 +20,8 @@
 #ifndef WEECHAT_UPGRADE_FILE_H
 #define WEECHAT_UPGRADE_FILE_H
 
+#include <stdio.h>
+
 #define UPGRADE_SIGNATURE "===== WeeChat Upgrade file v2.2 - binary, do not edit! ====="
 
 #define UPGRADE_ERROR(msg1, msg2)                                       \
diff --git a/src/core/wee-url.h b/src/core/wee-url.h
index 1ce168a83..5f4748ce8 100644
--- a/src/core/wee-url.h
+++ b/src/core/wee-url.h
@@ -20,6 +20,8 @@
 #ifndef WEECHAT_URL_H
 #define WEECHAT_URL_H
 
+#include <stdio.h>
+
 struct t_hashtable;
 struct t_infolist;
 
diff --git a/src/core/wee-util.c b/src/core/wee-util.c
index 4d3a9a5e0..461ac5854 100644
--- a/src/core/wee-util.c
+++ b/src/core/wee-util.c
@@ -24,6 +24,7 @@
 #endif
 
 #include <stdlib.h>
+#include <stdio.h>
 #include <stdint.h>
 #include <errno.h>
 #include <string.h>
diff --git a/src/gui/gui-chat.h b/src/gui/gui-chat.h
index 762e9b15f..714d386d1 100644
--- a/src/gui/gui-chat.h
+++ b/src/gui/gui-chat.h
@@ -20,6 +20,7 @@
 #ifndef WEECHAT_GUI_CHAT_H
 #define WEECHAT_GUI_CHAT_H
 
+#include <stdio.h>
 #include <time.h>
 
 struct t_hashtable;
diff --git a/src/plugins/logger/logger-buffer.h b/src/plugins/logger/logger-buffer.h
index 4e38e15f7..c5921f87d 100644
--- a/src/plugins/logger/logger-buffer.h
+++ b/src/plugins/logger/logger-buffer.h
@@ -20,6 +20,8 @@
 #ifndef WEECHAT_PLUGIN_LOGGER_BUFFER_H
 #define WEECHAT_PLUGIN_LOGGER_BUFFER_H
 
+#include <stdio.h>
+
 struct t_infolist;
 
 struct t_logger_buffer
diff --git a/src/plugins/lua/weechat-lua.c b/src/plugins/lua/weechat-lua.c
index 465575b17..24f1b3d5b 100644
--- a/src/plugins/lua/weechat-lua.c
+++ b/src/plugins/lua/weechat-lua.c
@@ -26,6 +26,7 @@
 #include <lualib.h>
 #include <lauxlib.h>
 #include <stdlib.h>
+#include <stdio.h>
 #include <string.h>
 
 #include "../weechat-plugin.h"
diff --git a/src/plugins/python/weechat-python.c b/src/plugins/python/weechat-python.c
index 77581c1f9..c079276ab 100644
--- a/src/plugins/python/weechat-python.c
+++ b/src/plugins/python/weechat-python.c
@@ -24,6 +24,7 @@
 #undef _
 
 #include <Python.h>
+#include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>