diff --git a/src/times/CMakeLists.txt b/src/times/CMakeLists.txt
new file mode 100644
index 0000000..b04d948
--- /dev/null
+++ b/src/times/CMakeLists.txt
@@ -0,0 +1,9 @@
+add_library(
+        RWTime STATIC
+        base.cpp
+        base.h
+        delta.cpp
+        delta.h
+        lognormal.cpp
+        lognormal.h
+)
diff --git a/src/utils/CMakeLists.txt b/src/utils/CMakeLists.txt
new file mode 100644
index 0000000..e1ed6d4
--- /dev/null
+++ b/src/utils/CMakeLists.txt
@@ -0,0 +1,9 @@
+add_library(
+        utils STATIC
+        functions.cpp
+        functions.h
+        io.cpp
+        io.h
+        ranges.cpp
+        ranges.h
+)