diff --git a/source/term.c b/source/term.c
index 3e35b61..1098a2a 100644
--- a/source/term.c
+++ b/source/term.c
@@ -4,6 +4,7 @@
 
 // if windows is defined.
 
+#if defined(_WIN64) || defined(_WIN32)
 #include <Windows.h>
 struct tart_vec2 term_current_size() {
     struct tart_vec2 ret;
@@ -20,3 +21,24 @@ struct tart_vec2 term_current_size() {
 
     return ret;
 }
+#else 
+#include <sys/ioctl.h>
+struct tart_vec2 term_current_size() {
+    struct tart_vec2 ret;
+
+    unsigned int rows = w.ws_row;
+    unsigned int cols = w.ws_col;
+
+    struct winsize w;
+    
+    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+    
+    unsigned short max_short = 0XFFFF;
+    if(rows < max_short && cols < max_short) {
+
+        ret = (struct tart_vec2){(unsigned short) rows ,(unsigned short) cols};
+    }
+
+    return ret;
+}
+#endif