diff --git a/SuperBuild/External_STIR.cmake b/SuperBuild/External_STIR.cmake
index 9a6998e1..d7b38be6 100644
--- a/SuperBuild/External_STIR.cmake
+++ b/SuperBuild/External_STIR.cmake
@@ -50,7 +50,7 @@ if(NOT ( DEFINED "USE_SYSTEM_${externalProjName}" AND "${USE_SYSTEM_${externalPr
   option(STIR_BUILD_SWIG_PYTHON "Build STIR Python interface" ${default_STIR_BUILD_SWIG_PYTHON})
   option(STIR_DISABLE_CERN_ROOT "Disable STIR ROOT interface" ON)
   option(STIR_DISABLE_LLN_MATRIX "Disable STIR Louvain-la-Neuve Matrix library for ECAT7 support" ON)
-  option(STIR_DISABLE_HDF5_SUPPORT "Disable STIR use of HDF5 libraries" ON)
+  option(STIR_DISABLE_HDF5 "Disable STIR use of HDF5 libraries" ON)
   option(STIR_ENABLE_EXPERIMENTAL "Enable STIR experimental code" OFF)
 
   mark_as_advanced(BUILD_STIR_EXECUTABLES BUILD_STIR_SWIG_PYTHON STIR_DISABLE_CERN_ROOT)
@@ -99,7 +99,7 @@ if(NOT ( DEFINED "USE_SYSTEM_${externalProjName}" AND "${USE_SYSTEM_${externalPr
     -DOPENMP_LIBRARIES:PATH=${OPENMP_LIBRARIES}
     # Use 2 variables for ROOT to cover multiple STIR versions
     -DDISABLE_CERN_ROOT_SUPPORT:BOOL=${STIR_DISABLE_CERN_ROOT} -DDISABLE_CERN_ROOT:BOOL=${STIR_DISABLE_CERN_ROOT}
-    -DDISABLE_HDF5_SUPPORT:BOOL=${STIR_DISABLE_HDF5_SUPPORT}
+    -DDISABLE_HDF5:BOOL=${STIR_DISABLE_HDF5}
     -DDISABLE_LLN_MATRIX:BOOL=${STIR_DISABLE_LLN_MATRIX}
     -DSTIR_ENABLE_EXPERIMENTAL:BOOL=${STIR_ENABLE_EXPERIMENTAL}
     -DDISABLE_NLOHMANN_JSON:BOOL=${STIR_DISABLE_JSON}