diff --git a/src/ctbin/ctbin.par b/src/ctbin/ctbin.par
index a0eb9dd..bf4447b 100644
--- a/src/ctbin/ctbin.par
+++ b/src/ctbin/ctbin.par
@@ -39,7 +39,7 @@ coordsys, s, a, "CEL", CEL|GAL,,"Coordinate system (CEL - celestial, GAL - galac
 xref,     r, a, 83.63,,, "First coordinate of image center in degrees (RA or galactic l)"
 yref,     r, a, 22.01,,, "Second coordinate of image center in degrees (DEC or galactic b)"
 axisrot,  r, h,   0.0,,, "Rotation angle of image axis, in degrees"
-proj,     s, a, "CAR", AZP|CAR|MER|STG|TAN,, "Projection method e.g. AZP|CAR|MER|STG|TAN"
+proj,     s, a, "CAR", AIT|AZP|CAR|MER|STG|TAN,, "Projection method e.g. AIT|AZP|CAR|MER|STG|TAN"
 
 #
 # Standard parameters
diff --git a/src/ctmodel/ctmodel.par b/src/ctmodel/ctmodel.par
index 969ef16..a769ded 100644
--- a/src/ctmodel/ctmodel.par
+++ b/src/ctmodel/ctmodel.par
@@ -52,7 +52,7 @@ coordsys, s, a, "CEL", CEL|GAL,,"Coordinate system (CEL - celestial, GAL - galac
 xref,     r, a, 83.63,,, "First coordinate of image center in degrees (RA or galactic l)"
 yref,     r, a, 22.01,,, "Second coordinate of image center in degrees (DEC or galactic b)"
 axisrot,  r, h, 0.0,,, "Rotation angle of image axis, in degrees"
-proj,     s, a, "CAR", AZP|CAR|MER|STG|TAN,, "Projection method e.g. AZP|CAR|MER|STG|TAN"
+proj,     s, a, "CAR", AIT|AZP|CAR|MER|STG|TAN,, "Projection method e.g. AIT|AZP|CAR|MER|STG|TAN"
 #
 # Standard parameters
 #====================
diff --git a/src/ctskymap/ctskymap.par b/src/ctskymap/ctskymap.par
index b369740..ea9eab2 100644
--- a/src/ctskymap/ctskymap.par
+++ b/src/ctskymap/ctskymap.par
@@ -34,7 +34,7 @@ coordsys, s, a, "CEL", CEL|GAL,,"Coordinate system (CEL - celestial, GAL - galac
 xref,     r, a, 83.63,,, "First coordinate of image center in degrees (RA or galactic l)"
 yref,     r, a, 22.01,,, "Second coordinate of image center in degrees (DEC or galactic b)"
 axisrot,  r, h, 0.0,,, "Rotation angle of image axis, in degrees"
-proj,     s, a, "CAR", AZP|CAR|MER|STG|TAN,, "Projection method e.g. AZP|CAR|MER|STG|TAN"
+proj,     s, a, "CAR", AIT|AZP|CAR|MER|STG|TAN,, "Projection method e.g. AIT|AZP|CAR|MER|STG|TAN"
 
 #
 # Standard parameters