diff --git a/src/handle_query_contract_ui.c b/src/handle_query_contract_ui.c
index eaa1c16..44d3afd 100644
--- a/src/handle_query_contract_ui.c
+++ b/src/handle_query_contract_ui.c
@@ -1,20 +1,13 @@
 #include "paraswap_plugin.h"
 
-int secure_len(char *src) {
-    char dest[256];
-    strncpy(dest, src, sizeof dest);  // Truncation may happen
-    dest[sizeof dest - 1] = 0;
-    return strlen(dest);  // Compliant: "dest" is guaranteed to be null-terminated
-}
-
 // Prepend `dest` with `ticker`.
 // Dest must be big enough to hold `ticker` + `dest` + `\0`.
 static void prepend_ticker(char *dest, size_t destsize, const char *ticker) {
     if (dest == NULL || ticker == NULL) {
         THROW(0x6503);
     }
-    uint8_t ticker_len = secure_len(ticker);
-    uint8_t dest_len = secure_len(dest);
+    uint8_t ticker_len = strlen(ticker);
+    uint8_t dest_len = strlen(dest);
 
     if (dest_len + ticker_len >= destsize) {
         THROW(0x6503);
diff --git a/tests/elfs/paraswap_nanos.elf b/tests/elfs/paraswap_nanos.elf
index 8cb606c..9a3689d 100755
Binary files a/tests/elfs/paraswap_nanos.elf and b/tests/elfs/paraswap_nanos.elf differ
diff --git a/tests/elfs/paraswap_nanox.elf b/tests/elfs/paraswap_nanox.elf
index 84725a9..15be54d 100755
Binary files a/tests/elfs/paraswap_nanox.elf and b/tests/elfs/paraswap_nanox.elf differ