diff --git a/modules/database/src/ioc/dbStatic/dbLexRoutines.c b/modules/database/src/ioc/dbStatic/dbLexRoutines.c
index 16124d64e..0b90f4b08 100644
--- a/modules/database/src/ioc/dbStatic/dbLexRoutines.c
+++ b/modules/database/src/ioc/dbStatic/dbLexRoutines.c
@@ -1086,7 +1086,7 @@ int dbRecordNameValidate(const char *name)
                          name, c);
 
         } else if(c==' ' || c=='\t' || c=='"' || c=='\'' || c=='.' || c=='$') {
-            epicsPrintf("Error: Bad character '%c' in Record/Alias name \"%s\"\n",
+            epicsPrintf(ERL_ERROR ": Bad character '%c' in Record/Alias name \"%s\"\n",
                 c, name);
             yyerrorAbort(NULL);
             return 1;
diff --git a/modules/database/src/ioc/dbStatic/dbStaticLib.c b/modules/database/src/ioc/dbStatic/dbStaticLib.c
index f8fa7608a..2e3811dca 100644
--- a/modules/database/src/ioc/dbStatic/dbStaticLib.c
+++ b/modules/database/src/ioc/dbStatic/dbStaticLib.c
@@ -2204,11 +2204,11 @@ long dbInitRecordLinks(dbRecordType *rtyp, struct dbCommon *prec)
              */
 
         } else if(dbCanSetLink(plink, &link_info, devsup)!=0) {
-            errlogPrintf("Error: %s.%s: can't initialize link type %d with \"%s\" (type %d)\n",
+            errlogPrintf(ERL_ERROR ": %s.%s: can't initialize link type %d with \"%s\" (type %d)\n",
                          prec->name, pflddes->name, plink->type, plink->text, link_info.ltype);
 
         } else if(dbSetLink(plink, &link_info, devsup)) {
-            errlogPrintf("Error: %s.%s: failed to initialize link type %d with \"%s\" (type %d)\n",
+            errlogPrintf(ERL_ERROR ": %s.%s: failed to initialize link type %d with \"%s\" (type %d)\n",
                          prec->name, pflddes->name, plink->type, plink->text, link_info.ltype);
         }
         free(plink->text);
diff --git a/modules/database/src/ioc/dbStatic/dbStaticRun.c b/modules/database/src/ioc/dbStatic/dbStaticRun.c
index 198ff5c1a..ee9480c54 100644
--- a/modules/database/src/ioc/dbStatic/dbStaticRun.c
+++ b/modules/database/src/ioc/dbStatic/dbStaticRun.c
@@ -143,7 +143,7 @@ long dbAllocRecord(DBENTRY *pdbentry,const char *precordName)
 
                 status = dbPutStringNum(pdbentry,pflddes->initial);
                 if(status)
-                    epicsPrintf("Error initializing %s.%s initial %s\n",
+                    epicsPrintf(ERL_ERROR " initializing %s.%s initial %s\n",
                                 pdbRecordType->name,pflddes->name,pflddes->initial);
             }
             break;
diff --git a/modules/database/src/ioc/dbStatic/dbYacc.y b/modules/database/src/ioc/dbStatic/dbYacc.y
index 75fb86cf0..369fd914f 100644
--- a/modules/database/src/ioc/dbStatic/dbYacc.y
+++ b/modules/database/src/ioc/dbStatic/dbYacc.y
@@ -370,9 +370,9 @@ json_value: jsonNULL    { $$ = dbmfStrdup("null"); }
 static int yyerror(char *str)
 {
     if (str)
-        epicsPrintf("Error: %s\n", str);
+        epicsPrintf(ERL_ERROR ": %s\n", str);
     else
-        epicsPrintf("Error");
+        epicsPrintf(ERL_ERROR "");
     if (!yyFailed) {    /* Only print this stuff once */
         epicsPrintf(" at or before '%s'", yytext);
         dbIncludePrint();
diff --git a/modules/database/src/ioc/misc/iocInit.c b/modules/database/src/ioc/misc/iocInit.c
index 3be83adbe..1b1d4fc0b 100644
--- a/modules/database/src/ioc/misc/iocInit.c
+++ b/modules/database/src/ioc/misc/iocInit.c
@@ -173,7 +173,7 @@ static int iocBuild_2(void)
 
     scanInit();
     if (asInit()) {
-        errlogPrintf("iocBuild: asInit Failed.\n");
+        errlogPrintf(ERL_ERROR " iocBuild: asInit Failed.\n");
         return -1;
     }
     dbProcessNotifyInit();
diff --git a/modules/libcom/src/as/asLib.y b/modules/libcom/src/as/asLib.y
index ca22ee55f..1e7397123 100644
--- a/modules/libcom/src/as/asLib.y
+++ b/modules/libcom/src/as/asLib.y
@@ -209,7 +209,7 @@ static int yyerror(char *str)
     if (strlen(str))
         errlogPrintf("%s at line %d\n", str, line_num);
     else
-        errlogPrintf("Error at line %d\n", line_num);
+        errlogPrintf(ERL_ERROR " at line %d\n", line_num);
     yyFailed = TRUE;
     return 0;
 }
diff --git a/modules/libcom/src/pool/threadPool.c b/modules/libcom/src/pool/threadPool.c
index d4f009107..a353aa31a 100644
--- a/modules/libcom/src/pool/threadPool.c
+++ b/modules/libcom/src/pool/threadPool.c
@@ -42,7 +42,7 @@ epicsThreadPool* epicsThreadPoolCreate(epicsThreadPoolConfig *opts)
 
     /* caller likely didn't initialize the options structure */
     if (opts && opts->maxThreads == 0) {
-        errlogMessage("Error: epicsThreadPoolCreate() options provided, but not initialized");
+        errlogMessage(ERL_ERROR ": epicsThreadPoolCreate() options provided, but not initialized");
         return NULL;
     }
 
@@ -78,7 +78,7 @@ epicsThreadPool* epicsThreadPoolCreate(epicsThreadPoolConfig *opts)
 
     if (pool->threadsRunning == 0 && pool->conf.initialThreads != 0) {
         epicsMutexUnlock(pool->guard);
-        errlogPrintf("Error: Unable to create any threads for thread pool\n");
+        errlogPrintf(ERL_ERROR ": Unable to create any threads for thread pool\n");
         goto cleanup;
 
     }