diff --git a/Main.cpp b/Main.cpp
index ce65a26..bc0b398 100644
--- a/Main.cpp
+++ b/Main.cpp
@@ -19,7 +19,11 @@ int main(void) {
 
     if (imgOriginalScene.empty()) {                             // if unable to open image
         std::cout << "error: image not read from file\n\n";     // show error message on command line
+#ifdef _WINDOWS
         _getch();                                               // may have to modify this line if not using Windows
+#else
+        getchar();
+#endif
         return(0);                                              // and exit program
     }
 
diff --git a/Main.h b/Main.h
index 790727c..4c9e1be 100644
--- a/Main.h
+++ b/Main.h
@@ -12,7 +12,11 @@
 #include "DetectChars.h"
 
 #include<iostream>
+#ifdef _WINDOWS
 #include<conio.h>           // may have to modify this line if not using Windows
+#else
+#include<stdio.h>
+#endif
 
 //#define SHOW_STEPS            // un-comment or comment this line to show steps or not