diff --git a/src/imageui.c b/src/imageui.c
index b10e5fa..2c724c0 100644
--- a/src/imageui.c
+++ b/src/imageui.c
@@ -157,7 +157,7 @@ imageui_set_property(GObject *object,
 {
 	Imageui *imageui = (Imageui *) object;
 
-    double zoom;
+	double zoom;
 
 #ifdef DEBUG_VERBOSE
 	{
@@ -211,7 +211,7 @@ imageui_get_property(GObject *object,
 {
 	Imageui *imageui = IMAGEUI(object);
 
-    double zoom;
+	double zoom;
 
 	switch (prop_id) {
 	case PROP_TILESOURCE:
diff --git a/src/imagewindow.c b/src/imagewindow.c
index 1e8b2e1..3fce77e 100644
--- a/src/imagewindow.c
+++ b/src/imagewindow.c
@@ -509,7 +509,7 @@ imagewindow_posteval(VipsImage *image,
 	gtk_action_bar_set_revealed(GTK_ACTION_BAR(win->progress_bar), FALSE);
 }
 
-/* Save and restore view setttings.
+/* Save and restore view settings.
  */
 
 static void
diff --git a/src/tilesource.c b/src/tilesource.c
index 9e5316f..e011c13 100644
--- a/src/tilesource.c
+++ b/src/tilesource.c
@@ -164,7 +164,7 @@ tilesource_open(Tilesource *tilesource, int level)
 				"page", level,
 				NULL);
 	}
-	else  if (vips_isprefix("webp", tilesource->loader) ||
+	else if (vips_isprefix("webp", tilesource->loader) ||
 		vips_isprefix("gif", tilesource->loader) ||
 		vips_isprefix("jxl", tilesource->loader)) {
 		/* These formats have pages all the same size and support page and n.
@@ -210,7 +210,7 @@ tilesource_render_notify_idle(void *user_data)
 }
 
 /* Come here from the vips_sink_screen() background thread when a tile has been
- * calculated. This is a bbackground thread, so we add an idle callback
+ * calculated. This is a background thread, so we add an idle callback
  * which will be run by the main thread when it next hits the mainloop.
  */
 static void
@@ -783,7 +783,7 @@ tilesource_set_property(GObject *object,
 	int i;
 	double d;
 	gboolean b;
-    TilesourceMode mode;
+	TilesourceMode mode;
 
 #ifdef DEBUG
 	{
@@ -1228,9 +1228,9 @@ tilesource_print(Tilesource *tilesource)
 	printf("\tpages_same_size = %d\n", tilesource->pages_same_size);
 	printf("\tall_mono = %d\n", tilesource->all_mono);
 	printf("\ttype = %s\n", 
-			vips_enum_nick(TYPE_SOURCE_TYPE, tilesource->type));
+			vips_enum_nick(TYPE_TYPE, tilesource->type));
 	printf("\tmode = %s\n", 
-			vips_enum_nick(TYPE_SOURCE_MODE, tilesource->mode));
+			vips_enum_nick(TYPE_MODE, tilesource->mode));
 	printf("\tdelay = %p\n", tilesource->delay);
 	printf("\tn_delay = %d\n", tilesource->n_delay);
 	printf("\tdisplay_width = %d\n", tilesource->display_width);
diff --git a/src/vipsdisp.h b/src/vipsdisp.h
index 6ecd038..d1b4387 100644
--- a/src/vipsdisp.h
+++ b/src/vipsdisp.h
@@ -33,14 +33,14 @@
 G_GNUC_BEGIN_IGNORE_DEPRECATIONS
 
 #define FREESID(SID, OBJ) \
-    G_STMT_START \
+	G_STMT_START \
 	{ \
 		if ((SID) && (OBJ)) { \
 			g_signal_handler_disconnect((OBJ), (SID)); \
 			(SID) = 0; \
 		} \
-    } \
-    G_STMT_END
+	} \
+	G_STMT_END
 
 #include "enumtypes.h"
 #include "gtkutil.h"