diff --git a/hgdriver/wrapper/hg_log.cpp b/hgdriver/wrapper/hg_log.cpp
index 2d14100..1070de0 100644
--- a/hgdriver/wrapper/hg_log.cpp
+++ b/hgdriver/wrapper/hg_log.cpp
@@ -250,7 +250,7 @@ extern "C"
 
 			return u2utf8(path);
 #else
-			char path[256];
+			char path[256] = { 0 };
 			int	 len = readlink("/proc/self/exe", path, sizeof(path) - 1);
 
 			if (len > 0 && len < sizeof(path))