diff --git a/compat/mingw.c b/compat/mingw.c
index d06cdc6254..dbd035c28e 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1257,7 +1257,7 @@ static const char *quote_arg_msys2(const char *arg)
 
 static const char *parse_interpreter(const char *cmd)
 {
-	static char buf[100];
+	static char buf[MAX_PATH];
 	char *p, *opt;
 	int n, fd;