diff --git a/src/application.c b/src/application.c
index 1f71c3a..12427e0 100644
--- a/src/application.c
+++ b/src/application.c
@@ -15,7 +15,6 @@
 #include "viewer.h"
 
 #include <errno.h>
-#include <inttypes.h>
 #include <limits.h>
 #include <poll.h>
 #include <pthread.h>
diff --git a/src/event.h b/src/event.h
index f8e2785..015130c 100644
--- a/src/event.h
+++ b/src/event.h
@@ -4,8 +4,8 @@
 
 #pragma once
 
+#include "action.h"
 #include "image.h"
-#include "keybind.h"
 
 /** Event types. */
 enum event_type {
diff --git a/src/formats/avif.c b/src/formats/avif.c
index ec58f9e..1c50c9c 100644
--- a/src/formats/avif.c
+++ b/src/formats/avif.c
@@ -5,8 +5,6 @@
 #include "../loader.h"
 
 #include <avif/avif.h>
-#include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 
 // AVI signature
diff --git a/src/formats/bmp.c b/src/formats/bmp.c
index 97a49d1..8b107a8 100644
--- a/src/formats/bmp.c
+++ b/src/formats/bmp.c
@@ -4,9 +4,7 @@
 
 #include "../loader.h"
 
-#include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 
 // BMP type id
 #define BMP_TYPE ('B' | ('M' << 8))
diff --git a/src/formats/gif.c b/src/formats/gif.c
index de26f98..ac63ed1 100644
--- a/src/formats/gif.c
+++ b/src/formats/gif.c
@@ -5,8 +5,6 @@
 #include "../loader.h"
 
 #include <gif_lib.h>
-#include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 
 // GIF signature
diff --git a/src/formats/heif.c b/src/formats/heif.c
index 86fabcb..4d1df87 100644
--- a/src/formats/heif.c
+++ b/src/formats/heif.c
@@ -8,7 +8,6 @@
 
 #include <libheif/heif.h>
 #include <stdlib.h>
-#include <string.h>
 
 #ifdef HAVE_LIBEXIF
 /**
diff --git a/src/formats/jpeg.c b/src/formats/jpeg.c
index b0aadfd..c436dbb 100644
--- a/src/formats/jpeg.c
+++ b/src/formats/jpeg.c
@@ -4,10 +4,8 @@
 
 #include "../loader.h"
 
-#include <errno.h>
 #include <setjmp.h>
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 
 // depends on stdio.h, uses FILE but doesn't include the header
diff --git a/src/gallery.c b/src/gallery.c
index 108fc43..5c34c5d 100644
--- a/src/gallery.c
+++ b/src/gallery.c
@@ -11,7 +11,6 @@
 #include "ui.h"
 
 #include <stdlib.h>
-#include <string.h>
 
 // Configuration parameters
 #define CFG_SECTION    "gallery"
diff --git a/src/info.c b/src/info.c
index 18f6df0..7350f84 100644
--- a/src/info.c
+++ b/src/info.c
@@ -6,7 +6,6 @@
 
 #include "application.h"
 #include "font.h"
-#include "imagelist.h"
 #include "keybind.h"
 #include "loader.h"
 #include "ui.h"
diff --git a/src/keybind.c b/src/keybind.c
index de394bb..d48aff7 100644
--- a/src/keybind.c
+++ b/src/keybind.c
@@ -6,7 +6,6 @@
 
 #include "application.h"
 
-#include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/src/loader.c b/src/loader.c
index e3fb630..3616fe7 100644
--- a/src/loader.c
+++ b/src/loader.c
@@ -6,15 +6,12 @@
 
 #include "application.h"
 #include "buildcfg.h"
-#include "event.h"
 #include "exif.h"
 #include "imagelist.h"
 
 #include <errno.h>
 #include <fcntl.h>
-#include <poll.h>
 #include <pthread.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
diff --git a/src/main.c b/src/main.c
index 51737f9..0a03912 100644
--- a/src/main.c
+++ b/src/main.c
@@ -7,7 +7,6 @@
 #include "config.h"
 #include "imagelist.h"
 #include "loader.h"
-#include "ui.h"
 #include "viewer.h"
 
 #include <getopt.h>
diff --git a/src/memdata.c b/src/memdata.c
index 2474a14..da0e76e 100644
--- a/src/memdata.c
+++ b/src/memdata.c
@@ -6,8 +6,6 @@
 
 #include <ctype.h>
 #include <errno.h>
-#include <stdarg.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <wchar.h>
diff --git a/src/viewer.c b/src/viewer.c
index cf92b27..9f4472c 100644
--- a/src/viewer.c
+++ b/src/viewer.c
@@ -9,12 +9,9 @@
 #include "fetcher.h"
 #include "imagelist.h"
 #include "info.h"
-#include "keybind.h"
-#include "loader.h"
 #include "ui.h"
 
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 #include <sys/timerfd.h>
 #include <unistd.h>