diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 482ce65f..e3f53ea2 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -69,5 +69,9 @@ if (WITH_DEBUG_CRYPTO)
   set(DEBUG_CRYPTO 1)
 endif (WITH_DEBUG_CRYPTO)
 
+if (WITH_DEBUG_CALLTRACE)
+  set(DEBUG_CALLTRACE 1)
+endif (WITH_DEBUG_CALLTRACE)
+
 # ENDIAN
 test_big_endian(WORDS_BIGENDIAN)
diff --git a/DefineOptions.cmake b/DefineOptions.cmake
index d482e199..0fb25876 100644
--- a/DefineOptions.cmake
+++ b/DefineOptions.cmake
@@ -3,4 +3,5 @@ option(WITH_SSH1 "Build with SSH1 support" OFF)
 option(WITH_SFTP "Build with SFTP support" ON)
 option(WITH_SERVER "Build with SSH server support" ON)
 option(WITH_STATIC_LIB "Build with a static library" OFF)
-option(WITH_DEBUG_CRYPTO "Build with cryto debut output" OFF)
+option(WITH_DEBUG_CRYPTO "Build with cryto debug output" OFF)
+option(WITH_DEBUG_CALLTRACE "Build with calltrace debug output" ON)
diff --git a/config.h.cmake b/config.h.cmake
index 69863735..ad97b116 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -77,6 +77,9 @@
 /* Define to 1 if you want to enable debug output for crypto functions */
 #cmakedefine DEBUG_CRYPTO 1
 
+/* Define to 1 if you want to enable calltrace debug output */
+#cmakedefine DEBUG_CALLTRACE 1
+
 /*************************** ENDIAN *****************************/
 
 /* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most