diff --git a/include/sway/server.h b/include/sway/server.h
index b6a6bde3..a3782f91 100644
--- a/include/sway/server.h
+++ b/include/sway/server.h
@@ -12,6 +12,7 @@
 #include <wlr/render/wlr_renderer.h>
 // TODO WLR: make Xwayland optional
 #include "list.h"
+#include "config.h"
 #ifdef HAVE_XWAYLAND
 #include "sway/xwayland.h"
 #endif
diff --git a/include/sway/xwayland.h b/include/sway/xwayland.h
index e6572ae9..78d1053b 100644
--- a/include/sway/xwayland.h
+++ b/include/sway/xwayland.h
@@ -1,4 +1,3 @@
-#ifdef HAVE_XWAYLAND
 #ifndef SWAY_XWAYLAND_H
 #define SWAY_XWAYLAND_H
 
@@ -24,4 +23,3 @@ struct sway_xwayland {
 void handle_xwayland_ready(struct wl_listener *listener, void *data);
 
 #endif
-#endif
diff --git a/sway/commands/swap.c b/sway/commands/swap.c
index 325adc38..8b8e9d79 100644
--- a/sway/commands/swap.c
+++ b/sway/commands/swap.c
@@ -1,5 +1,6 @@
 #include <strings.h>
 #include <wlr/util/log.h>
+#include "sway/config.h"
 #include "sway/commands.h"
 #include "sway/tree/arrange.h"
 #include "sway/tree/layout.h"
diff --git a/sway/criteria.c b/sway/criteria.c
index b2c6edf9..48899125 100644
--- a/sway/criteria.c
+++ b/sway/criteria.c
@@ -10,6 +10,7 @@
 #include "stringop.h"
 #include "list.h"
 #include "log.h"
+#include "config.h"
 
 bool criteria_is_empty(struct criteria *criteria) {
 	return !criteria->title
@@ -19,9 +20,9 @@ bool criteria_is_empty(struct criteria *criteria) {
 		&& !criteria->instance
 		&& !criteria->con_mark
 		&& !criteria->con_id
-    #ifdef HAVE_XWAYLAND
+#ifdef HAVE_XWAYLAND
 		&& !criteria->id
-    #endif
+#endif
 		&& !criteria->window_role
 		&& !criteria->window_type
 		&& !criteria->floating
@@ -129,14 +130,14 @@ static bool criteria_matches_view(struct criteria *criteria,
 		}
 	}
 
-  #ifdef HAVE_XWAYLAND
+#ifdef HAVE_XWAYLAND
 	if (criteria->id) { // X11 window ID
 		uint32_t x11_window_id = view_get_x11_window_id(view);
 		if (!x11_window_id || x11_window_id != criteria->id) {
 			return false;
 		}
 	}
-  #endif
+#endif
 
 	if (criteria->window_role) {
 		// TODO
@@ -293,10 +294,10 @@ static enum criteria_token token_from_name(char *name) {
 		return T_CON_ID;
 	} else if (strcmp(name, "con_mark") == 0) {
 		return T_CON_MARK;
-  #ifdef HAVE_XWAYLAND
+#ifdef HAVE_XWAYLAND
 	} else if (strcmp(name, "id") == 0) {
 		return T_ID;
-  #endif
+#endif
 	} else if (strcmp(name, "instance") == 0) {
 		return T_INSTANCE;
 	} else if (strcmp(name, "shell") == 0) {
@@ -363,9 +364,9 @@ static char *get_focused_prop(enum criteria_token token) {
 	case T_CON_ID: // These do not support __focused__
 	case T_CON_MARK:
 	case T_FLOATING:
-  #ifdef HAVE_XWAYLAND
+#ifdef HAVE_XWAYLAND
 	case T_ID:
-  #endif
+#endif
 	case T_TILING:
 	case T_URGENT:
 	case T_WINDOW_TYPE:
@@ -436,14 +437,14 @@ static bool parse_token(struct criteria *criteria, char *name, char *value) {
 	case T_WINDOW_TYPE:
 		// TODO: This is a string but will be stored as an enum or integer
 		break;
-  #ifdef HAVE_XWAYLAND
+#ifdef HAVE_XWAYLAND
 	case T_ID:
 		criteria->id = strtoul(effective_value, &endptr, 10);
 		if (*endptr != 0) {
 			error = strdup("The value for 'id' should be numeric");
 		}
 		break;
-  #endif
+#endif
 	case T_FLOATING:
 		criteria->floating = true;
 		break;
diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index 33eebf97..3de36e1c 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -11,6 +11,7 @@
 #include <wlr/types/wlr_idle.h>
 #include "list.h"
 #include "log.h"
+#include "sway/config.h"
 #include "sway/desktop.h"
 #include "sway/desktop/transaction.h"
 #include "sway/input/cursor.h"
diff --git a/sway/input/seat.c b/sway/input/seat.c
index 6b4e5f2e..2d62b101 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -12,6 +12,7 @@
 #include <wlr/types/wlr_output_layout.h>
 #include <wlr/types/wlr_xcursor_manager.h>
 #include "log.h"
+#include "sway/config.h"
 #include "sway/debug.h"
 #include "sway/desktop.h"
 #include "sway/input/cursor.h"
diff --git a/sway/tree/layout.c b/sway/tree/layout.c
index 3d361ea5..91f6accd 100644
--- a/sway/tree/layout.c
+++ b/sway/tree/layout.c
@@ -6,6 +6,7 @@
 #include <string.h>
 #include <wlr/types/wlr_output.h>
 #include <wlr/types/wlr_output_layout.h>
+#include "sway/config.h"
 #include "sway/debug.h"
 #include "sway/tree/arrange.h"
 #include "sway/tree/container.h"
diff --git a/sway/tree/view.c b/sway/tree/view.c
index 2eff80a8..7cc15ae3 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -3,6 +3,7 @@
 #include <wayland-server.h>
 #include <wlr/render/wlr_renderer.h>
 #include <wlr/types/wlr_output_layout.h>
+#include "sway/config.h"
 #ifdef HAVE_XWAYLAND
 #include <wlr/xwayland.h>
 #endif