diff --git a/src/libCom/osi/epicsStdio.c b/src/libCom/osi/epicsStdio.c
index 840967e80..18a5da6d7 100644
--- a/src/libCom/osi/epicsStdio.c
+++ b/src/libCom/osi/epicsStdio.c
@@ -90,8 +90,9 @@ int epicsShareAPI epicsShareAPI epicsStdoutPrintf(const char *pFormat, ...)
 {
     va_list     pvar;
     int         nchar;
+    FILE        *stream = epicsGetStdout();
     va_start(pvar, pFormat);
-    nchar = vprintf(pFormat,pvar);
+    nchar = vfprintf(stream,pFormat,pvar);
     va_end (pvar);
     return(nchar);
 }
diff --git a/src/libCom/osi/epicsStdio.h b/src/libCom/osi/epicsStdio.h
index 44394ec5b..fcccacd80 100644
--- a/src/libCom/osi/epicsStdio.h
+++ b/src/libCom/osi/epicsStdio.h
@@ -52,9 +52,9 @@ epicsShareFunc int epicsShareAPI epicsStdoutPrintf(
 #endif
 
 #if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
-#define printf(...) epicsStdoutPrintf(__VAR_ARGS__) 
+#define printf(...) fprintf(stdout,__VAR_ARGS__) 
 #elif defined(__GNUC__)
-#define printf(format...) epicsStdoutPrintf(format)
+#define printf(format...) fprintf(stdout,format)
 #else
 #define printf epicsStdoutPrintf
 #endif