diff --git a/.gitignore b/.gitignore
index 9986867..f3aef0c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,3 +62,4 @@ build
 CMakeCache.txt
 Makefile
 src/huffman/testfiles
+data
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 01b9be2..562c62a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,12 +21,13 @@ add_executable( echochar                src/echochar.c              )
 add_executable( euler                   src/euler.c                 )
 add_executable( factorial               src/factorial.c             )
 add_executable( fail                    src/fail.c                  )
+add_executable( fib                    	src/fib.c                  	)
 add_executable( fread                   src/fread.c                 )
 add_executable( hello-world             src/hello-world.c           )
 add_executable( options                 src/options.c               )
 add_executable( pointermagic            src/pointermagic.c          )
 add_executable( primenumbers            src/primenumbers.c          )
-add_executable( print-syste-constants  src/print-system-constants.c)
+add_executable( print-syste-constants  src/print-system-constants.c )
 add_executable( quersumme               src/quersumme.c             )
 add_executable( readfile                src/readfile.c              )
 add_executable( redefinition            src/redefinition.c          )