diff --git a/msi.c b/msi.c
index 9fc6097..0247f88 100644
--- a/msi.c
+++ b/msi.c
@@ -319,7 +319,7 @@ static MSI_ENTRY *parse_entry(MSI_FILE *msi, const u_char *data, int is_root)
 	memcpy(entry->name, data + DIRENT_NAME, entry->nameLen);
 	/* The root directory entry's Name field MUST contain the null-terminated
 	 * string "Root Entry" in Unicode UTF-16. */
-	if (is_root && memcmp(entry->name, root_entry, entry->nameLen)) {
+	if (is_root && memcmp(entry->name, msi_root_entry, entry->nameLen)) {
 		printf("Corrupted Root Directory Entry's Name\n");
 		OPENSSL_free(entry);
 		return NULL; /* FAILED */
@@ -334,7 +334,7 @@ static MSI_ENTRY *parse_entry(MSI_FILE *msi, const u_char *data, int is_root)
 	memcpy(entry->creationTime, data + DIRENT_CREATE_TIME, 8);
 	/* The Creation Time field in the root storage directory entry MUST be all zeroes
 	   but the Modified Time field in the root storage directory entry MAY be all zeroes */
-	if (is_root && memcmp(entry->creationTime, zeroes, 8)) {
+	if (is_root && memcmp(entry->creationTime, msi_zeroes, 8)) {
 		printf("Corrupted Root Directory Entry's Creation Time\n");
 		OPENSSL_free(entry);
 		return NULL; /* FAILED */
diff --git a/msi.h b/msi.h
index b3f26bb..6d692a7 100644
--- a/msi.h
+++ b/msi.h
@@ -200,13 +200,13 @@ static const u_char digital_signature_ex[] = {
 	0x45, 0x00, 0x78, 0x00, 0x00, 0x00
 };
 
-static const u_char root_entry[] = {
+static const u_char msi_root_entry[] = {
 	0x52, 0x00, 0x6F, 0x00, 0x6F, 0x00, 0x74, 0x00,
 	0x20, 0x00, 0x45, 0x00, 0x6E, 0x00, 0x74, 0x00,
 	0x72, 0x00, 0x79, 0x00, 0x00, 0x00
 };
 
-static const u_char zeroes[] = {
+static const u_char msi_zeroes[] = {
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };