diff --git a/cmake_targets/build_oai b/cmake_targets/build_oai
index 5568c159d1..a867b3e32b 100755
--- a/cmake_targets/build_oai
+++ b/cmake_targets/build_oai
@@ -99,8 +99,6 @@ Options:
    Selects the transport protocol type, options: None, Ethernet, benetel4g, benetel5g, oran_fhlib_5g
 -P | --phy_simulators
    Makes the unitary tests Layer 1 simulators
--S | --core_simulators
-   Makes the core security features unitary simulators
 -s | --check
    runs a set of auto-tests based on simulators and several compilation tests
 --run-group 
@@ -113,17 +111,8 @@ Options:
    Shows detailed compilation instructions in makefile
 --build-doxygen
    Builds doxygen based documentation.
---build-coverity-scan
-   Builds Coverity-Scan objects for upload
---disable-deadline
-   Disables deadline scheduler of Linux kernel (>=3.14.x).
 --trace-asn1c-enc-dec
    Output asn1c logging traces via OAI logging system.
---enable-deadline
-   Enable deadline scheduler of Linux kernel (>=3.14.x). 
---disable-cpu-affinity
-   Disables CPU Affinity between UHD/TX/RX Threads (Valid only when deadline scheduler is disabled). By defaulT, CPU Affinity is enabled when not using deadline scheduler. It is enabled only with >2 CPUs. For eNB, CPU_0-> Device library (UHD), CPU_1->TX Threads, CPU_2...CPU_MAX->Rx Threads. For UE, CPU_0->Device Library(UHD), CPU_1..CPU_MAX -> All the UE threads
---enable-cpu-affinity
 --enable-LTTNG
    Enable LTTNG log. While lttng is enabled, T-Tracer will be disabled
 --disable-T-Tracer
@@ -146,8 +135,6 @@ Options:
    Disable AVX512 intrinsics whatever processor capability is
 --noavx2
    Disable AVX2 intrinsics whatever processor capability is
--k | --skip-shared-libraries
-   Skip build for shared libraries to reduce compilation time when building frequently for debugging purposes
 --ninja
   Tell cmake to use the Ninja build system. Without, will generate make files
 --sanitize