diff --git a/main/main.cpp b/main/main.cpp
index 265a52d..16e559d 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -49,7 +49,10 @@ using RubberBand::gettimeofday;
 #endif
 
 #ifdef _MSC_VER
-using RubberBand::usleep;
+#include <windows.h>
+static void usleep(unsigned long usec) {
+    ::Sleep(usec == 0 ? 0 : usec < 1000 ? 1 : usec / 1000);
+}
 #define strdup _strdup
 #endif
 
diff --git a/meson.build b/meson.build
index 8a5a0f1..5dd0492 100644
--- a/meson.build
+++ b/meson.build
@@ -66,8 +66,8 @@ program_sources = [
 
 if system == 'windows'
   program_sources += [
-    'src/getopt/getopt.c',
-    'src/getopt/getopt_long.c'
+    'src/ext/getopt/getopt.c',
+    'src/ext/getopt/getopt_long.c'
   ]
 endif