diff --git a/cmake/modules/RootConfiguration.cmake b/cmake/modules/RootConfiguration.cmake
index f51bcbe..1ee0602 100644
--- a/cmake/modules/RootConfiguration.cmake
+++ b/cmake/modules/RootConfiguration.cmake
@@ -569,7 +569,7 @@ configure_file(${CMAKE_SOURCE_DIR}/cmake/scripts/ROOTConfig-version.cmake.in
 #---Compiler flags (because user apps are a bit dependent on them...)----------------------------------------
 string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __cxxflags "${CMAKE_CXX_FLAGS}")
 string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __cflags "${CMAKE_C_FLAGS}")
-string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __fflags "${CMAKE_fortran_FLAGS}")
+string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __fflags "${CMAKE_Fortran_FLAGS}")
 set(ROOT_COMPILER_FLAG_HINTS "#
 set(ROOT_CXX_FLAGS \"${__cxxflags}\")
 set(ROOT_C_FLAGS \"${__cflags}\")
diff --git a/cmake/scripts/RootUseFile.cmake.in b/cmake/scripts/RootUseFile.cmake.in
index 045926d..a419744 100644
--- a/cmake/scripts/RootUseFile.cmake.in
+++ b/cmake/scripts/RootUseFile.cmake.in
@@ -9,4 +9,4 @@ link_directories(${ROOT_LIBRARY_DIR})
 add_definitions(${ROOT_DEFINITIONS})
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ROOT_CXX_FLAGS}")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ROOT_C_FLAGS}")
-set(CMAKE_fortran_FLAGS "${CMAKE_fortran_FLAGS} ${ROOT_fortran_FLAGS}")
+set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${ROOT_fortran_FLAGS}")
diff --git a/etc/cmake/RootUseFile.cmake b/etc/cmake/RootUseFile.cmake
index b9a8e34..f931ad3 100644
--- a/etc/cmake/RootUseFile.cmake
+++ b/etc/cmake/RootUseFile.cmake
@@ -6,4 +6,4 @@ link_directories(${ROOT_LIBRARY_DIR})
 add_definitions(${ROOT_DEFINITIONS})
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ROOT_CXX_FLAGS}")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ROOT_C_FLAGS}")
-set(CMAKE_fortran_FLAGS "${CMAKE_fortran_FLAGS} ${ROOT_fortran_FLAGS}")
+set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${ROOT_fortran_FLAGS}")