diff --git a/interfaces/sourcegen/sourcegen/_data/ct_auto.yaml b/interfaces/sourcegen/sourcegen/_data/ct_auto.yaml
index be97e038a2..4e7bcf0a47 100644
--- a/interfaces/sourcegen/sourcegen/_data/ct_auto.yaml
+++ b/interfaces/sourcegen/sourcegen/_data/ct_auto.yaml
@@ -12,6 +12,8 @@ recipes:
 - name: getGitCommit
   implements: gitCommit  # inconsistent API (preexisting)
 - name: getCanteraError
+- name: setLogWriter
+- name: setLogCallback
 - name: addCanteraDirectory
   implements: addDirectory  # inconsistent API (preexisting)
 - name: getDataDirectories
@@ -42,5 +44,3 @@ recipes:
   implements: epsilon_0
 - name: clearStorage
 - name: resetStorage
-- name: setLogWriter
-- name: setLogCallback
diff --git a/interfaces/sourcegen/sourcegen/clib/_CLibSourceGenerator.py b/interfaces/sourcegen/sourcegen/clib/_CLibSourceGenerator.py
index a6a982f45f..c99afb6b1d 100644
--- a/interfaces/sourcegen/sourcegen/clib/_CLibSourceGenerator.py
+++ b/interfaces/sourcegen/sourcegen/clib/_CLibSourceGenerator.py
@@ -441,7 +441,8 @@ def merge_params(
 
         func_name = f"{recipe.prefix}_{recipe.name}"
         reserved = ["cabinetSize", "parentHandle",
-                    "getCanteraError", "clearStorage", "resetStorage"]
+                    "getCanteraError", "setLogWriter", "setLogCallback",
+                    "clearStorage", "resetStorage"]
         if recipe.name in reserved:
             recipe.what = "reserved"
             loader = Environment(loader=BaseLoader)
diff --git a/interfaces/sourcegen/sourcegen/clib/config.yaml b/interfaces/sourcegen/sourcegen/clib/config.yaml
index 965810a2c5..68413a7e61 100644
--- a/interfaces/sourcegen/sourcegen/clib/config.yaml
+++ b/interfaces/sourcegen/sourcegen/clib/config.yaml
@@ -15,6 +15,7 @@ ignore_funcs:
 includes:
   "":
   - cantera/base/global.h
+  - cantera/base/ExternalLogger.h
   Solution:
   - cantera/base/Solution.h
   Interface:
diff --git a/interfaces/sourcegen/sourcegen/clib/templates.yaml b/interfaces/sourcegen/sourcegen/clib/templates.yaml
index d0570a596c..2b1456610e 100644
--- a/interfaces/sourcegen/sourcegen/clib/templates.yaml
+++ b/interfaces/sourcegen/sourcegen/clib/templates.yaml
@@ -53,6 +53,18 @@ clib-reserved-getCanteraError-h: |-
    */
   int {{ prefix }}_getCanteraError(int bufLen, char* buf);
 
+clib-reserved-setLogWriter-h: |-
+  /**
+   *  Undocumented.
+   */
+  int {{ prefix }}_setLogWriter(void* logger);
+
+clib-reserved-setLogCallback-h: |-
+  /**
+   *  Undocumented.
+   */
+  int {{ prefix }}_setLogCallback(LogCallback writer);
+
 clib-reserved-resetStorage-h: |-
   /**
    *  Delete all objects and erase mapping.
@@ -449,6 +461,27 @@ clib-reserved-getCanteraError-cpp: |-
       return handleAllExceptions(-1, ERR);
   }
 
+clib-reserved-setLogWriter-cpp: |-
+  // reserved: setLogWriter
+  try {
+      Logger* logwriter = (Logger*)logger;
+      setLogger(logwriter);
+      return 0;
+  } catch (...) {
+      return handleAllExceptions(-1, ERR);
+  }
+
+clib-reserved-setLogCallback-cpp: |-
+  // reserved: setLogCallback
+  static unique_ptr<Logger> logwriter;
+  try {
+      logwriter = make_unique<ExternalLogger>(writer);
+      setLogger(logwriter.get());
+      return 0;
+  } catch (...) {
+      return handleAllExceptions(-1, ERR);
+  }
+
 clib-reserved-resetStorage-cpp: |-
   // reserved: void Cabinet<T>::reset()
   try {