diff --git a/trick_source/sim_services/CheckPointAgent/input_parser.l b/trick_source/sim_services/CheckPointAgent/input_parser.l
index a7dc0520..a385afd8 100644
--- a/trick_source/sim_services/CheckPointAgent/input_parser.l
+++ b/trick_source/sim_services/CheckPointAgent/input_parser.l
@@ -561,8 +561,6 @@ void ChkPtParseContext::init_scanner() {
 
     // Set the file where output messages are to go.
     yyset_out( stdout, scanner);
-
-    yyset_lineno( 1, scanner);
     yyset_extra( this, scanner);
 
 }
diff --git a/trick_source/sim_services/MemoryManager/adef_parser.l b/trick_source/sim_services/MemoryManager/adef_parser.l
index 6c32c362..7241e5e8 100644
--- a/trick_source/sim_services/MemoryManager/adef_parser.l
+++ b/trick_source/sim_services/MemoryManager/adef_parser.l
@@ -273,8 +273,6 @@ void Trick::ADefParseContext::init_scanner() {
     // Set the file where output messages are to go.
     yyset_out( stdout, scanner);
 
-    yyset_lineno( 1, scanner );
-
     yyset_extra( this, scanner);
 
 }
diff --git a/trick_source/sim_services/MemoryManager/ref_parser.l b/trick_source/sim_services/MemoryManager/ref_parser.l
index 8c4153f1..ff3c78f5 100644
--- a/trick_source/sim_services/MemoryManager/ref_parser.l
+++ b/trick_source/sim_services/MemoryManager/ref_parser.l
@@ -138,8 +138,6 @@ void RefParseContext::init_scanner() {
     // Set the file where output messages are to go.
     yyset_out( stdout, scanner);
 
-    yyset_lineno( 1, scanner);
-
     yyset_extra( this, scanner);
 
 }