diff --git a/src/pmacAsynIPPort.c b/src/pmacAsynIPPort.c
index ec19bcc..0e2c700 100644
--- a/src/pmacAsynIPPort.c
+++ b/src/pmacAsynIPPort.c
@@ -496,7 +496,7 @@ static int pmacReadReady(pmacPvt *pPmacPvt, asynUser *pasynUser) {
                     pPmacPvt->portName, thisRead);
     } else {
         asynPrint(pasynUser, ASYN_TRACE_ERROR,
-                  "%s read pmacReadReady failed status=%d,retval=%d\n",
+                  "%s read pmacReadReady failed status=%d, retval=%d\n",
                   pPmacPvt->portName, status, retval);
     }
     return retval;