diff --git a/Makefile b/Makefile
index 8573837..72e9542 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 CFLAGS+= -std=c99 -Wall -Wextra -pedantic
-LDADD+= -lX11
+LDADD+= -lX11 -lXinerama
 LDFLAGS=
 PREFIX?= /usr
 BINDIR?= $(PREFIX)/bin
diff --git a/sowm.c b/sowm.c
index 0cc1293..27c51ce 100644
--- a/sowm.c
+++ b/sowm.c
@@ -4,9 +4,11 @@
 #include <X11/XF86keysym.h>
 #include <X11/keysym.h>
 #include <X11/XKBlib.h>
+#include<X11/extensions/Xinerama.h>
 #include <stdlib.h>
 #include <signal.h>
 #include <unistd.h>
+#include <stdbool.h>
 
 typedef union {
     const char** com;
@@ -97,6 +99,7 @@ void notify_enter(XEvent *e) {
 
 void notify_motion(XEvent *e) {
     if (!mouse.subwindow) return;
+    if (cur->f == 1) return;
 
     while(XCheckTypedEvent(d, MotionNotify, e));
 
@@ -108,6 +111,7 @@ void notify_motion(XEvent *e) {
         wy + (mouse.button == 1 ? yd : 0),
         ww + (mouse.button == 3 ? xd : 0),
         wh + (mouse.button == 3 ? yd : 0));
+    win_size(cur->w, &cur->wx, &cur->wy, &cur->ww, &cur->wh);
 }
 
 void key_press(XEvent *e) {
@@ -172,12 +171,32 @@ void win_kill() {
     if (cur) XKillClient(d, cur->w);
 }
 
+bool coords_in_box (int x, int y, int box_x, int box_y, int box_w, int box_h) {
+    if ((x >= box_x && x < box_x + box_w) && (y >= box_y && y < box_y + box_h))
+        return true;
+    else
+        return false;
+}
+
 void win_center() {
     if (!cur) return;
 
     win_size(cur->w, &(int){0}, &(int){0}, &ww, &wh);
 
-    XMoveWindow(d, cur->w, (sw - ww) / 2, (sh - wh) / 2);
+    if (XineramaIsActive(d)) {
+        int number_of_monitors;
+        XineramaScreenInfo *screen_info = XineramaQueryScreens(d, &number_of_monitors);
+        for (int i = 0; i < number_of_monitors; i++) {
+            if (coords_in_box(cur->wx + (cur->ww / 2), cur->wy + (cur->wh / 2),
+                screen_info[i].x_org, screen_info[i].y_org,
+                screen_info[i].width, screen_info[i].height))
+                XMoveWindow(d, cur->w,
+                            screen_info[i].x_org + ((screen_info[i].width  - ww) / 2),
+                            screen_info[i].y_org + ((screen_info[i].height - wh) / 2));
+        }
+    } else
+        XMoveWindow(d, cur->w, (sw - ww) / 2, (sh - wh) / 2);
+    win_size(cur->w, &cur->wx, &cur->wy, &cur->ww, &cur->wh);
 }
 
 void win_fs() {
@@ -185,8 +214,19 @@ void win_fs() {
 
     if ((cur->f = cur->f ? 0 : 1)) {
         win_size(cur->w, &cur->wx, &cur->wy, &cur->ww, &cur->wh);
-        XMoveResizeWindow(d, cur->w, 0, 0, sw, sh);
-
+        if (XineramaIsActive(d)) {
+            int number_of_monitors;
+            XineramaScreenInfo *screen_info = XineramaQueryScreens(d, &number_of_monitors);
+            for (int i = 0; i < number_of_monitors; i++) {
+                if (coords_in_box(cur->wx + (cur->ww / 2), cur->wy + (cur->wh / 2),
+                    screen_info[i].x_org, screen_info[i].y_org,
+                    screen_info[i].width, screen_info[i].height))
+                    XMoveResizeWindow(d, cur->w,
+                                      screen_info[i].x_org, screen_info[i].y_org,
+                                      screen_info[i].width, screen_info[i].height);
+            }
+        } else
+            XMoveResizeWindow(d, cur->w, 0, 0, sw, sh);
     } else
         XMoveResizeWindow(d, cur->w, cur->wx, cur->wy, cur->ww, cur->wh);
 }