diff --git a/CMakeLists.txt b/CMakeLists.txt
index c4f12e4acc4..36b115af043 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -138,6 +138,8 @@ if(WITH_USDT)
   find_package(USDT MODULE REQUIRED)
 endif()
 
+cmake_dependent_option(ENABLE_EXTERNAL_SIGNER "Enable external signer support." ON "NOT WIN32" OFF)
+
 set(configure_warnings)
 
 include(CheckPIESupported)
@@ -310,6 +312,7 @@ if(ENABLE_WALLET)
   message("   - descriptor wallets (SQLite) ...... ${WITH_SQLITE}")
   message("   - legacy wallets (Berkeley DB) ..... ${WITH_BDB}")
 endif()
+message("  external signer ..................... ${ENABLE_EXTERNAL_SIGNER}")
 message("  port mapping:")
 message("   - using NAT-PMP .................... ${WITH_NATPMP}")
 message("   - using UPnP ....................... ${WITH_MINIUPNPC}")
diff --git a/cmake/bitcoin-config.h.in b/cmake/bitcoin-config.h.in
index 04590fc6097..f599efc89f8 100644
--- a/cmake/bitcoin-config.h.in
+++ b/cmake/bitcoin-config.h.in
@@ -35,6 +35,9 @@
 /* Define this symbol to build code that uses AVX2 intrinsics */
 #cmakedefine ENABLE_AVX2 1
 
+/* Define if external signer support is enabled */
+#cmakedefine ENABLE_EXTERNAL_SIGNER 1
+
 /* Define this symbol to build code that uses SSE4.1 intrinsics */
 #cmakedefine ENABLE_SSE41 1