diff --git a/lib/http_tools.sh b/lib/http_tools.sh
index ba073b0..a8fdcb6 100755
--- a/lib/http_tools.sh
+++ b/lib/http_tools.sh
@@ -58,7 +58,7 @@
 #
 # This function requires the following library file:
 #
-# command_paths.sh
+# core_lib.sh
 #
 # The library file must be sourced BEFORE calling this function.
 #
@@ -247,7 +247,7 @@ conditional_get () {
 		
 		# quiet failure mode
 		if $cache_only_mode; then
-			echo "ERROR: $FUNCNAME: resource not cached: $location" >&2
+			print_log_message "$FUNCNAME: ERROR: resource not cached: $location" "$log_file"
 			return 1
 		fi
 		
@@ -403,7 +403,7 @@ conditional_get () {
 	elif [ "$response_code" = "304" ]; then
 		# quiet failure mode
 		if $force_output_mode; then
-			echo "ERROR: $FUNCNAME: resource not modified: $location" >&2
+			print_log_message "$FUNCNAME: ERROR: resource not modified: $location" "$log_file"
 			return 1
 		fi
 		
@@ -433,7 +433,7 @@ conditional_get () {
 #
 # This function requires the following library files:
 #
-# command_paths.sh
+# core_lib.sh
 #
 # These library files must be sourced BEFORE calling this function.
 #
@@ -475,7 +475,7 @@ get_response_code () {
 #
 # This function requires the following library files:
 #
-# command_paths.sh
+# core_lib.sh
 #
 # These library files must be sourced BEFORE calling this function.
 #