diff --git a/cime/config/acme/machines/config_machines.xml b/cime/config/acme/machines/config_machines.xml
index e3d389ca07d7..5ca1a1c630e9 100644
--- a/cime/config/acme/machines/config_machines.xml
+++ b/cime/config/acme/machines/config_machines.xml
@@ -187,7 +187,7 @@
     <TESTS>acme_developer</TESTS>
     <COMPILERS>intel,gnu,cray</COMPILERS>
     <MPILIBS>mpt,mpi-serial</MPILIBS>
-    <CIME_OUTPUT_ROOT>$ENV{SCRATCH}/acme_scratch/cori_haswell</CIME_OUTPUT_ROOT>
+    <CIME_OUTPUT_ROOT>$ENV{SCRATCH}/acme_scratch/cori-haswell</CIME_OUTPUT_ROOT>
     <RUNDIR>$CIME_OUTPUT_ROOT/$CASE/run</RUNDIR>
     <EXEROOT>$CIME_OUTPUT_ROOT/$CASE/bld</EXEROOT>
     <DIN_LOC_ROOT>/project/projectdirs/acme/inputdata</DIN_LOC_ROOT>
@@ -321,7 +321,7 @@
     <TESTS>acme_developer</TESTS>
     <COMPILERS>intel,gnu,cray</COMPILERS>
     <MPILIBS>mpt,mpi-serial</MPILIBS>
-    <CIME_OUTPUT_ROOT>$ENV{SCRATCH}/acme_scratch/cori_knl</CIME_OUTPUT_ROOT>
+    <CIME_OUTPUT_ROOT>$ENV{SCRATCH}/acme_scratch/cori-knl</CIME_OUTPUT_ROOT>
     <RUNDIR>$CIME_OUTPUT_ROOT/$CASE/run</RUNDIR>
     <EXEROOT>$CIME_OUTPUT_ROOT/$CASE/bld</EXEROOT>
     <DIN_LOC_ROOT>/project/projectdirs/acme/inputdata</DIN_LOC_ROOT>