diff --git a/.github/workflows/sanitizer.yml b/.github/workflows/sanitizer.yml
index d85f2da4a..aab048fc1 100644
--- a/.github/workflows/sanitizer.yml
+++ b/.github/workflows/sanitizer.yml
@@ -7,8 +7,8 @@ on:
 
 jobs:
   sanitizer:
-    name: Run address-sanitizer on Ubuntu
-    runs-on: ubuntu-latest
+    name: Run address-sanitizer on macOS
+    runs-on: macos-13
     strategy:
       fail-fast: false
 
diff --git a/src/output.c b/src/output.c
index 75dc7e9c7..863126377 100644
--- a/src/output.c
+++ b/src/output.c
@@ -2041,6 +2041,8 @@ void LogOutputOrder(BODY *body, CONTROL *control, FILES *files, OUTPUT *output,
   }
   fprintf(fp, "\n");
   free(cCol);
+  free(cUnit);
+  free(cTmp);
 }
 
 void LogGridOutput(BODY *body, CONTROL *control, FILES *files, OUTPUT *output,
@@ -2174,7 +2176,6 @@ void LogBody(BODY *body, CONTROL *control, FILES *files, MODULE *module,
 void WriteLog(BODY *body, CONTROL *control, FILES *files, MODULE *module,
               OPTIONS *options, OUTPUT *output, SYSTEM *system, UPDATE *update,
               fnUpdateVariable ***fnUpdate, fnWriteOutput fnWrite[], int iEnd) {
-  char *cTime=NULL;
   FILE *fp;
   double dTotTime;
 
@@ -2186,13 +2187,10 @@ void WriteLog(BODY *body, CONTROL *control, FILES *files, MODULE *module,
   double dDt = fdGetTimeStep(body, control, system, update, fnUpdate);
 
   if (iEnd == 0) {
-    fvFormattedString(&cTime, "Input");
     fp = fopen(files->cLog, "w");
   } else if (iEnd == 1) {
-    fvFormattedString(&cTime, "Final");
     fp = fopen(files->cLog, "a");
   } else if (iEnd == -1) {
-    fvFormattedString(&cTime, "Initial");
     fp = fopen(files->cLog, "w");
   } else {
     fprintf(stderr, "ERROR: Unknown cTime in output.c:WriteLog.\n");