diff --git a/umfpack/src/amd/CMakeLists.txt b/umfpack/src/amd/CMakeLists.txt
index 6ba009d685..952eff6e2c 100644
--- a/umfpack/src/amd/CMakeLists.txt
+++ b/umfpack/src/amd/CMakeLists.txt
@@ -55,6 +55,8 @@ FOREACH(outfileName ${UMFPACK_AMD_CPP_SOURCES})
     OUTPUT ${outfileName}
     COMMAND ${CMAKE_C_COMPILER}
     ARGS ${UMFPACK_AMD_INCLUDES} ${flags} ${CMAKE_CURRENT_SOURCE_DIR}/${infileName} > ${outfileName}
+    COMMAND sed  # cray workaround
+    ARGS -i 's/__fsid_t/__fsid_t_/g' ${outfileName} # cray workaround
     DEPENDS ${infileName}
   )
 
diff --git a/umfpack/src/umfpack/CMakeLists.txt b/umfpack/src/umfpack/CMakeLists.txt
index 78873cd8e3..9b064125bd 100644
--- a/umfpack/src/umfpack/CMakeLists.txt
+++ b/umfpack/src/umfpack/CMakeLists.txt
@@ -451,6 +451,8 @@ FOREACH(outfileName ${UMFPACK_CPP_SOURCES})
     OUTPUT ${outfileName}
     COMMAND ${CMAKE_C_COMPILER}
     ARGS ${UMFPACK_INCLUDES} ${flags} ${CMAKE_CURRENT_SOURCE_DIR}/${infileName} > ${outfileName}
+    COMMAND sed  # cray workaround
+    ARGS -i 's/__fsid_t/__fsid_t_/g' ${outfileName}  # cray workaround
     DEPENDS ${infileName}
   )