diff --git a/src/main.c b/src/main.c
index 01b9edf..4e49c81 100644
--- a/src/main.c
+++ b/src/main.c
@@ -7,6 +7,7 @@
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
+#include <sys/stat.h>
 
 #define X (op & 0x0F00) >> 8
 #define Y (op & 0x00F0) >> 4
@@ -583,6 +584,14 @@ op_handler(void)
     }
 }
 
+uint_fast8_t
+is_file(const char* path)
+{
+    struct stat s;
+    stat(path, &s);
+    return S_ISREG(s.st_mode);
+}
+
 void
 timers()
 {
@@ -604,12 +613,17 @@ main(int argc, char** argv)
     }
 
     if (access(argv[1], F_OK)) {
-        fputs("ERROR: Provided ROM file does not exist\n", stderr);
+        fputs("ERROR: Provided file does not exist\n", stderr);
+        return 1;
+    }
+
+    if (!is_file(argv[1])) {
+        fputs("ERROR: Provided file is not a regular file\n", stderr);
         return 1;
     }
 
     if (access(argv[1], R_OK)) {
-        fputs("ERROR: No read permission to provided ROM file\n", stderr);
+        fputs("ERROR: No read permission to provided file\n", stderr);
         return 1;
     }