diff --git a/gadget/4.0/README.md b/gadget/4.0/README.md
index 9903509c326a0d300b193e71b5a979e8d44e0a5d..96ebcaf35b4db5356891f411922b9328be73c476 100644
--- a/gadget/4.0/README.md
+++ b/gadget/4.0/README.md
@@ -45,7 +45,7 @@ It includes initial conditions for each of the examples. When untarred you gener
 
 ### Build the Executable
 
-##### General Building of the Executable
+#### General Building of the Executable
 
 1. Two files are need from the repository: [gadget4.tar.gz](./gadget/4.0/gadget4.tar.gz) and [example_ics.tar.gz](./gadget/4.0/example_ics.tar.gz)
 
@@ -85,7 +85,7 @@ where EXEC is the name of the executable.
 8. Run the code using mpirun or submit a SLURM script.
 
 
-##### Building a Test Case Executable | Case A
+#### Building a Test Case Executable | Case A
 
 1. Download and untar a test case tarball, e.g., [gadget4-case-A.tar.gz](./gadget/4.0/gadget4-case-A.tar.gz) (see below) and the source code used in the benchmarks named [gadget4-benchmarks.tar.gz](./gadget/4.0/gadget4-benchmarks.tar.gz). The folder `gadget4-case-A` has the **Config.sh**, **ics_collision_g4.dat**, **param.txt**, **TREECOOL**, **slurm_script.sh**, and **README** files.