diff --git a/main.cpp b/main.cpp
index 72bd94b..85f5a8e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1490,7 +1490,7 @@ static bool saveEntry(FILE* outFile, char* path, rk_entry_type type,
 static inline uint32_t convertChipType(const char* chip) {
 	char buffer[5];
 	memset(buffer, 0, sizeof(buffer));
-	snprintf(buffer, sizeof(buffer), "%s", chip);
+	snprintf(buffer, sizeof(buffer), "%.4s", chip);
 	return buffer[0] << 24 | buffer[1] << 16 | buffer[2] << 8 | buffer[3];
 }