diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index 8682e12..5006631 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -391,7 +391,7 @@
 // Search an array of sha1 strings for one matching the given sha1.
 // Return the index of the match on success, or -1 if no match is
 // found.
-int FindMatchingPatch(uint8_t* sha1, const std::vector<std::string>& patch_sha1_str) {
+static int FindMatchingPatch(uint8_t* sha1, const std::vector<std::string>& patch_sha1_str) {
   for (size_t i = 0; i < patch_sha1_str.size(); ++i) {
     uint8_t patch_sha1[SHA_DIGEST_LENGTH];
     if (ParseSha1(patch_sha1_str[i].c_str(), patch_sha1) == 0 &&
diff --git a/applypatch/include/applypatch/applypatch.h b/applypatch/include/applypatch/applypatch.h
index ca3dafb..4489dec 100644
--- a/applypatch/include/applypatch/applypatch.h
+++ b/applypatch/include/applypatch/applypatch.h
@@ -63,9 +63,8 @@
 
 int LoadFileContents(const char* filename, FileContents* file);
 int SaveFileContents(const char* filename, const FileContents* file);
-int FindMatchingPatch(uint8_t* sha1, const std::vector<std::string>& patch_sha1_str);
 
-// bsdiff.cpp
+// bspatch.cpp
 void ShowBSDiffLicense();
 int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size,
                      const Value* patch, ssize_t patch_offset,