diff --git a/meta-oe/recipes-devtools/android-tools/android-tools/core/b64_pton_function_decl.patch b/meta-oe/recipes-devtools/android-tools/android-tools/core/b64_pton_function_decl.patch
new file mode 100644
index 0000000000..80410f1d2b
--- /dev/null
+++ b/meta-oe/recipes-devtools/android-tools/android-tools/core/b64_pton_function_decl.patch
@@ -0,0 +1,14 @@
+Add protoype declaration for  b64_pton
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+--- a/adb/adb_auth_client.c
++++ b/adb/adb_auth_client.c
+@@ -29,6 +29,7 @@
+ 
+ #define TRACE_TAG TRACE_AUTH
+ 
++extern int b64_pton(const char* src, uint8_t* target, size_t targsize);
+ 
+ struct adb_public_key {
+     struct listnode node;
diff --git a/meta-oe/recipes-devtools/android-tools/android-tools_5.1.1.r37.bb b/meta-oe/recipes-devtools/android-tools/android-tools_5.1.1.r37.bb
index 26393605d4..37e72de2a6 100644
--- a/meta-oe/recipes-devtools/android-tools/android-tools_5.1.1.r37.bb
+++ b/meta-oe/recipes-devtools/android-tools/android-tools_5.1.1.r37.bb
@@ -39,6 +39,7 @@ SRC_URI = " \
     file://core/0011-Remove-bionic-specific-calls.patch;patchdir=system/core \
     file://core/0012-Fix-implicit-declaration-of-stlcat-strlcopy-function.patch;patchdir=system/core \
     file://core/adb_libssl_11.diff;patchdir=system/core \
+    file://core/b64_pton_function_decl.patch;patchdir=system/core \
     file://core/0013-adb-Support-riscv64.patch;patchdir=system/core \
     file://core/0014-add-u3-ss-descriptor-support-for-adb.patch;patchdir=system/core \
     file://core/0015-libsparse-Split-off-most-of-sparse_file_read_normal-.patch;patchdir=system/core \