diff --git a/cmake/Modules/Packages/ML-QUIP.cmake b/cmake/Modules/Packages/ML-QUIP.cmake
index cdadec7d0e..5cb5a0967e 100644
--- a/cmake/Modules/Packages/ML-QUIP.cmake
+++ b/cmake/Modules/Packages/ML-QUIP.cmake
@@ -18,7 +18,9 @@ if(DOWNLOAD_QUIP)
     set(temp "${temp}F77FLAGS += -fpp -fixed -fPIC\n")
     set(temp "${temp}F95_PRE_FILENAME_FLAG = -Tf\n")
   elseif(CMAKE_Fortran_COMPILER_ID STREQUAL GNU)
-    set(temp "${temp}FPP=${CMAKE_Fortran_COMPILER} -E -x f95-cpp-input\nOPTIM=${CMAKE_Fortran_FLAGS_${BTYPE}} -fmax-stack-var-size=6553600\n")
+    # quip library uses GNU fortran extensions. If any more restrictive standards are set, reset them
+    string(REGEX REPLACE -std=f[0-9]+ -std=gnu _fopt "${CMAKE_Fortran_FLAGS_${BTYPE}}")
+    set(temp "${temp}FPP=${CMAKE_Fortran_COMPILER} -E -x f95-cpp-input\nOPTIM=${_fopt} -fmax-stack-var-size=6553600\n")
     set(temp "${temp}DEFINES += -DGETARG_F2003 -DGETENV_F2003 -DGFORTRAN -DFORTRAN_UNDERSCORE\n")
     set(temp "${temp}F95FLAGS += -x f95-cpp-input -ffree-line-length-none -ffree-form -fno-second-underscore -fPIC\n")
     set(temp "${temp}F77FLAGS += -x f77-cpp-input -fno-second-underscore -fPIC\n")
@@ -41,11 +43,6 @@ if(DOWNLOAD_QUIP)
   set(temp "${temp}HAVE_TURBOGAP=0\nHAVE_QR=1\nHAVE_THIRDPARTY=0\nHAVE_FX=0\nHAVE_SCME=0\nHAVE_MTP=0\n")
   set(temp "${temp}HAVE_MBD=0\nHAVE_TTM_NF=0\nHAVE_CH4=0\nHAVE_NETCDF4=0\nHAVE_MDCORE=0\nHAVE_ASAP=0\n")
   set(temp "${temp}HAVE_CGAL=0\nHAVE_METIS=0\nHAVE_LMTO_TBE=0\nHAVE_SCALAPACK=0\n")
-  # for gfortran, the -std= flag, if present, *must* be -std=gnu or else the compilation will fail.
-  if(CMAKE_Fortran_COMPILER_ID STREQUAL GNU)
-    string(REGEX REPLACE -std=f[0-9]+ -std=gnu newtemp "${temp}")
-    set(temp "${newtemp}")
-  endif()
   file(WRITE ${CMAKE_BINARY_DIR}/quip.config "${temp}")
 
   message(STATUS "QUIP download via git requested - we will build our own")