diff --git a/libs/libc/string/CMakeLists.txt b/libs/libc/string/CMakeLists.txt
index 2fc49b7884..cde0c623bc 100644
--- a/libs/libc/string/CMakeLists.txt
+++ b/libs/libc/string/CMakeLists.txt
@@ -23,6 +23,7 @@
 # Add the string C files to the build
 
 set(SRCS
+    lib_bzero.c
     lib_ffs.c
     lib_ffsl.c
     lib_ffsll.c
diff --git a/libs/libm/libm/CMakeLists.txt b/libs/libm/libm/CMakeLists.txt
index 72a23c433f..f905767a98 100644
--- a/libs/libm/libm/CMakeLists.txt
+++ b/libs/libm/libm/CMakeLists.txt
@@ -35,6 +35,10 @@ if(CONFIG_LIBM)
       lib_coshf.c
       lib_expf.c
       lib_fmodf.c
+      lib_fmax.c
+      lib_fmin.c
+      lib_fminf.c
+      lib_fmaxf.c
       lib_frexpf.c
       lib_ldexpf.c
       lib_logf.c