diff --git a/recipes/rte-rrtmgp/bld.bat b/recipes/rte-rrtmgp/bld.bat
index 5067440632bc7..272e01fe0a52b 100644
--- a/recipes/rte-rrtmgp/bld.bat
+++ b/recipes/rte-rrtmgp/bld.bat
@@ -12,6 +12,9 @@ set FAILURE_THRESHOLD=7.e-4
 
 set FCFLAGS="-ffree-line-length-none -m64 -std=f2008 -march=native -fbounds-check -fmodule-private -fimplicit-none -finit-real=nan -fbacktrace"
 
+set "HOST=x86_64-w64-mingw32"
+set "FC=%HOST%-gfortran.exe"
+
 :: CMake configuration
 mkdir build
 cd build