diff --git a/ccp4i/scripts/check.script b/ccp4i/scripts/check.script
index def44bc..dd4bb7e 100755
--- a/ccp4i/scripts/check.script
+++ b/ccp4i/scripts/check.script
@@ -24,7 +24,7 @@
   if $RUN_RAMPAGE {
 
     # Generate command line
-    set cmd "[BinPath rapper]"
+    set cmd "[BinPath rappermc]"
 
     set rapperdatadir [FileJoin [GetEnvPath CCP4] share rapper]
     set paramsfile [FileJoin $rapperdatadir params.xml]
diff --git a/ccp4i/scripts/rapper.script b/ccp4i/scripts/rapper.script
index cdae1e2..faae226 100755
--- a/ccp4i/scripts/rapper.script
+++ b/ccp4i/scripts/rapper.script
@@ -17,7 +17,7 @@
 
 #set up command line 
 
-set cmd "[BinPath rapper]"
+set cmd "[BinPath rappermc]"
 
 set rapperdatadir [FileJoin [GetEnvPath CCP4] share rapper]
 set paramsfile [FileJoin [GetEnvPath CCP4] share rapper params.xml]
@@ -180,7 +180,7 @@ append outfiles " $XYZOUT PROJECT"
 
 # Run RAPPER to join loop back to framework and out put to defined pdb file
 # Also need to sort out multimodel files join - FIX ME
-set cmd2 "[BinPath rapper]"
+set cmd2 "[BinPath rappermc]"
 append cmd2 " $paramsfile joinpdb "
 append cmd2 " --pdb2 \"$root\-loop.pdb\" "
 append cmd2 " --pdb  \"$root\-framework.pdb\" "
diff --git a/ccp4i/tasks/check.tcl b/ccp4i/tasks/check.tcl
index ae88ff2..ee3307b 100755
--- a/ccp4i/tasks/check.tcl
+++ b/ccp4i/tasks/check.tcl
@@ -46,7 +46,7 @@ proc check_run { arrayname } {
  # Check for Rampage program. If it is not found, we switch off the option.
  # If it was the only option, script will fail with next check.
  if { $array(RUN_RAMPAGE) == 1 } {
-   if { [FindExecutable "rapper"] == "" } {
+   if { [FindExecutable "rappermc"] == "" } {
       WarningMessage "Input Error: Rapper_Rampage program not found in system path."
       set array(RUN_RAMPAGE) 0
     }
diff --git a/ccp4i/tasks/rapper.tcl b/ccp4i/tasks/rapper.tcl
index e299057..8843a3f 100755
--- a/ccp4i/tasks/rapper.tcl
+++ b/ccp4i/tasks/rapper.tcl
@@ -28,7 +28,7 @@ proc rapper_run { arrayname } {
  # Check for RAPPER program. If it is not found, we switch off the option.
  # If it was the only option, script will fail with next check.
   if { [regexp MODEL $build_type ] && $prog_type == "RAPPER"} {
-   if { [FindExecutable "rapper"] == "" } {
+   if { [FindExecutable "rappermc"] == "" } {
       WarningMessage "Input Error: RAPPER program not found in system path."
       set build_type 0
     }