diff --git a/src/asterx1_gps.cpp b/src/asterx1_gps.cpp
index c9703612d253e6ffc90deaad58b985c1ca2cf6dc..5f623c31a9dcf91535dc6efafead8a2d3d5ea958 100644
--- a/src/asterx1_gps.cpp
+++ b/src/asterx1_gps.cpp
@@ -149,7 +149,7 @@ int CasteRx1::startAcquisition()
 	else //otherwise
 	{
 		status &= ~ACQUISITION_RUNNING;
-		retValue = ASTERX_CONFIG_ERROR;
+		retValue = ASTERX1_CONFIG_ERROR;
 		cout << "CasteRx1::startAcquisition(). ERROR on device configuration for data transmission" << endl;
 	}
 
@@ -576,7 +576,7 @@ int CasteRx1::sendCommand(const string & cmnd)
 		cout << "      Sent   command: " << cmnd << endl;
 		cout << "      Device   Reply: " << receivedReply << endl;
 		cout << "      Expected Reply: " << expectedReply << endl;
-		return ASTERX_CONFIG_ERROR;
+		return ASTERX1_CONFIG_ERROR;
 	}
 }
 
diff --git a/src/asterx1_gps.h b/src/asterx1_gps.h
index 0f2d769f3e41744c5d5fece93f37e099f5460835..0d0e38dfef140801623a0208cbbb8e50a544c435 100644
--- a/src/asterx1_gps.h
+++ b/src/asterx1_gps.h
@@ -100,7 +100,7 @@ const int BASIC_SUCCESS = 1;
 const int PORT_OPEN_ERROR = -1;
 const int PORT_CLOSE_ERROR = -2;
 const int PORT_CONFIG_ERROR = -3;
-const int ASTERX_CONFIG_ERROR = -4;
+const int ASTERX1_CONFIG_ERROR = -4;
 const int ASTERX1_INVALID_COMMAND = -5;
 const int ASTERX1_STOPPINTG_ERROR = -6;
 const int PORT_READ_TIMEOUT = -7;
@@ -165,7 +165,7 @@ class CasteRx1
 		  Starts a mode of operation of continuos data flow from the device at a rate of 2Hz.
 		  Return values are:
 			BASIC_SUCCESS
-			ASTERX_CONFIG_ERROR
+			ASTERX1_CONFIG_ERROR
 		*/
 		int startAcquisition(); 
 		
@@ -313,7 +313,7 @@ class CasteRx1
 				BASIC_SUCCESS if device has acknowledged the command.
 				PORT_READ_TIMEOUT if timeout is reached and the receiver has not replied with an acknowledment.
 				ASTERX1_INVALID_COMMAND when device doesn't know the command.
-				ASTERX_CONFIG_ERROR otherwise.
+				ASTERX1_CONFIG_ERROR otherwise.
 		*/
 		int sendCommand(const string & cmnd);