diff --git a/modelrun.x b/modelrun.x
index 5f15852..b8926a0 100755
--- a/modelrun.x
+++ b/modelrun.x
@@ -1,5 +1,5 @@
 #/bin/sh
-gfortran src/esdvm.f90 src/main.F90 -o ess
+gfortran src/esdvm.F90 src/main.F90 -o ess
 ./ess
 gfortran src/BasalAreaAnalysis.f90 -o ana
 ./ana