diff --git a/external/android/arm64-v8a/include/rustwallet/rustwallet.h b/external/android/arm64-v8a/include/rustwallet/rustwallet.h
index 8fdd151..8dfba10 100644
--- a/external/android/arm64-v8a/include/rustwallet/rustwallet.h
+++ b/external/android/arm64-v8a/include/rustwallet/rustwallet.h
@@ -57,3 +57,5 @@ char *rsa_key_pair(void);
 char *rsa_encrypt(const char *content, const char *p_key);
 
 char *rsa_decrypt(const char *content, const char *s_key);
+
+void free_cstr(char *s);
diff --git a/external/android/arm64-v8a/librustwallet.a b/external/android/arm64-v8a/librustwallet.a
index b80a3c7..7a6583f 100644
Binary files a/external/android/arm64-v8a/librustwallet.a and b/external/android/arm64-v8a/librustwallet.a differ
diff --git a/external/android/armeabi-v7a/include/rustwallet/rustwallet.h b/external/android/armeabi-v7a/include/rustwallet/rustwallet.h
index 8fdd151..8dfba10 100644
--- a/external/android/armeabi-v7a/include/rustwallet/rustwallet.h
+++ b/external/android/armeabi-v7a/include/rustwallet/rustwallet.h
@@ -57,3 +57,5 @@ char *rsa_key_pair(void);
 char *rsa_encrypt(const char *content, const char *p_key);
 
 char *rsa_decrypt(const char *content, const char *s_key);
+
+void free_cstr(char *s);
diff --git a/external/android/armeabi-v7a/librustwallet.a b/external/android/armeabi-v7a/librustwallet.a
index d553f92..dc0d4bd 100644
Binary files a/external/android/armeabi-v7a/librustwallet.a and b/external/android/armeabi-v7a/librustwallet.a differ
diff --git a/external/android/x86/include/rustwallet/rustwallet.h b/external/android/x86/include/rustwallet/rustwallet.h
index 8fdd151..8dfba10 100644
--- a/external/android/x86/include/rustwallet/rustwallet.h
+++ b/external/android/x86/include/rustwallet/rustwallet.h
@@ -57,3 +57,5 @@ char *rsa_key_pair(void);
 char *rsa_encrypt(const char *content, const char *p_key);
 
 char *rsa_decrypt(const char *content, const char *s_key);
+
+void free_cstr(char *s);
diff --git a/external/android/x86/librustwallet.a b/external/android/x86/librustwallet.a
index af7d2e8..6f50926 100644
Binary files a/external/android/x86/librustwallet.a and b/external/android/x86/librustwallet.a differ
diff --git a/external/android/x86_64/include/rustwallet/rustwallet.h b/external/android/x86_64/include/rustwallet/rustwallet.h
index 8fdd151..8dfba10 100644
--- a/external/android/x86_64/include/rustwallet/rustwallet.h
+++ b/external/android/x86_64/include/rustwallet/rustwallet.h
@@ -57,3 +57,5 @@ char *rsa_key_pair(void);
 char *rsa_encrypt(const char *content, const char *p_key);
 
 char *rsa_decrypt(const char *content, const char *s_key);
+
+void free_cstr(char *s);
diff --git a/external/android/x86_64/librustwallet.a b/external/android/x86_64/librustwallet.a
index d835a08..8cf5f59 100644
Binary files a/external/android/x86_64/librustwallet.a and b/external/android/x86_64/librustwallet.a differ