diff --git a/src/ffmpeg.cpp b/src/ffmpeg.cpp
index 12d68a1..5a7486f 100644
--- a/src/ffmpeg.cpp
+++ b/src/ffmpeg.cpp
@@ -31,7 +31,7 @@ ffmpeg_render
     }
 
 #if _WIN32
-    command = string_quote(command)
+    command = string_quote(command);
 #endif
 
     FILE* fp = POPEN(command.c_str(), PWRITE_MODE);