diff --git a/otto.sh b/otto.sh
index a49103a..46c77c2 100755
--- a/otto.sh
+++ b/otto.sh
@@ -28,7 +28,7 @@ generate_tags_file () {
 
 format_source_code () {
     #Get a list of all C files
-    source_c_files=$(find ./src ./tests -name '*.c')
+    source_c_files=$(find ./src ./tests/shared -name '*.c')
     for f in $source_c_files; do
         clang-format -i -style=file $f
     done
@@ -40,7 +40,7 @@ format_source_code () {
     done
 
     #Get a list of all Cpp files.
-    source_cpp_files=$(find ./src ./tests -name '*.cpp')
+    source_cpp_files=$(find ./src ./tests/shared -name '*.cpp')
     for f in $source_cpp_files; do
         clang-format -i -style=file $f
     done