diff --git a/src/ctexpcube/ctexpcube.cpp b/src/ctexpcube/ctexpcube.cpp
index 74c0948..fd234c4 100644
--- a/src/ctexpcube/ctexpcube.cpp
+++ b/src/ctexpcube/ctexpcube.cpp
@@ -435,7 +435,7 @@ void ctexpcube::set_response(void)
         if (obs != NULL) {
 
             // Set response if we don't have one
-            if (!obs->hasresponse()) {
+            if (!obs->has_response()) {
 
                 // Load response information
                 std::string database = (*this)["caldb"].string();
diff --git a/src/ctlike/ctlike.cpp b/src/ctlike/ctlike.cpp
index ec12970..f548f95 100644
--- a/src/ctlike/ctlike.cpp
+++ b/src/ctlike/ctlike.cpp
@@ -455,7 +455,7 @@ void ctlike::get_parameters(void)
 
                     // If response is not valid then set response from
                     // task parameters
-                    if (!obs->hasresponse()) {
+                    if (!obs->has_response()) {
 
                         // Get calibration parameters
                         if (!asked_for_response) {
diff --git a/src/ctmodel/ctmodel.cpp b/src/ctmodel/ctmodel.cpp
index 2ae5d2b..3c0a33e 100644
--- a/src/ctmodel/ctmodel.cpp
+++ b/src/ctmodel/ctmodel.cpp
@@ -606,7 +606,7 @@ void ctmodel::setup_obs(void)
             }
         
             // Set response if we don't have one
-            if (!obs->hasresponse()) {
+            if (!obs->has_response()) {
 
                 // Set calibration database. If specified parameter is a
                 // directory then use this as the pathname to the calibration
diff --git a/src/ctpsfcube/ctpsfcube.cpp b/src/ctpsfcube/ctpsfcube.cpp
index 8927390..75dac6c 100644
--- a/src/ctpsfcube/ctpsfcube.cpp
+++ b/src/ctpsfcube/ctpsfcube.cpp
@@ -435,7 +435,7 @@ void ctpsfcube::set_response(void)
         if (obs != NULL) {
 
             // Set response if we don't have one
-            if (!obs->hasresponse()) {
+            if (!obs->has_response()) {
 
                 // Load response information
                 std::string database = (*this)["caldb"].string();