diff --git a/src/ca/acctstMain.c b/src/ca/acctstMain.c
index 8d78867ab..d1027482c 100644
--- a/src/ca/acctstMain.c
+++ b/src/ca/acctstMain.c
@@ -10,7 +10,7 @@ int main ( int argc, char **argv )
     unsigned repetitionCount;
 
     if ( argc < 2 || argc > 4 ) {
-        printf ( "usage: %s <chan name> [channel count] [repetition count]\n", argv[0] );
+        printf ( "usage: %s <PV name> [channel count] [repetition count]\n", argv[0] );
     }
 
     if ( argc >= 3 ) {
diff --git a/src/ca/caEventRateMain.cpp b/src/ca/caEventRateMain.cpp
index 69a6a09dd..6e7d4a127 100644
--- a/src/ca/caEventRateMain.cpp
+++ b/src/ca/caEventRateMain.cpp
@@ -7,7 +7,7 @@ void caEventRate ( const char *pName );
 int main ( int argc, char **argv )
 {
     if ( argc < 2 || argc > 2 ) {
-        printf ( "usage: %s < chan name >\n", argv[0] );
+        printf ( "usage: %s < PV name >\n", argv[0] );
     }
 
     caEventRate ( argv[1] );