diff --git a/builtin/revert.c b/builtin/revert.c
index ba27cf15ee..200149e2e7 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -110,7 +110,7 @@ static void verify_opt_compatible(const char *me, const char *base_opt, ...)
 
 static void verify_opt_mutually_compatible(const char *me, ...)
 {
-	const char *opt1, *opt2;
+	const char *opt1, *opt2 = NULL;
 	va_list ap;
 
 	va_start(ap, me);
diff --git a/tree-walk.c b/tree-walk.c
index 808bb55ba3..a8d8a66d59 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -344,7 +344,7 @@ int traverse_trees(int n, struct tree_desc *t, struct traverse_info *info)
 		unsigned long mask, dirmask;
 		const char *first = NULL;
 		int first_len = 0;
-		struct name_entry *e;
+		struct name_entry *e = NULL;
 		int len;
 
 		for (i = 0; i < n; i++) {