diff --git a/examples/f03/CMakeLists.txt b/examples/f03/CMakeLists.txt
index a299c7cde8c..1073fda1a94 100644
--- a/examples/f03/CMakeLists.txt
+++ b/examples/f03/CMakeLists.txt
@@ -15,6 +15,6 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0")
 if(${PIO_BUILD_TIMING})
   SET(TIMING_LINK_LIB timing)
 endif()
-SET(SRC examplePio.f90)
+SET(SRC examplePio.F90)
 ADD_EXECUTABLE(examplePio_f90 ${SRC})
 TARGET_LINK_LIBRARIES(examplePio_f90 piof pioc ${TIMING_LINK_LIB})
diff --git a/examples/f03/Makefile.am b/examples/f03/Makefile.am
index fc885d0878d..6f995163fda 100644
--- a/examples/f03/Makefile.am
+++ b/examples/f03/Makefile.am
@@ -14,7 +14,7 @@ ${top_builddir}/src/clib/libpioc.la
 # Build the test for make check.
 check_PROGRAMS = examplePio
 
-examplePio_SOURCES = examplePio.f90
+examplePio_SOURCES = examplePio.F90
 
 if RUN_TESTS
 # Tests will run from a bash script.
diff --git a/examples/f03/examplePio.f90 b/examples/f03/examplePio.F90
similarity index 100%
rename from examples/f03/examplePio.f90
rename to examples/f03/examplePio.F90