diff --git a/zephyr/CMakeLists.txt b/zephyr/CMakeLists.txt
index fa6d335463ce..7a03a267655b 100644
--- a/zephyr/CMakeLists.txt
+++ b/zephyr/CMakeLists.txt
@@ -39,8 +39,8 @@ function(sof_append_relative_path_definitions target)
 endfunction()
 
 define_property(GLOBAL PROPERTY SOF_LLEXT_LAST_TARGET
-	BRIEF_DOCS "Last LLEXT target"
-	FULL_DOCS "\
+  BRIEF_DOCS "Last LLEXT target"
+  FULL_DOCS "\
 Building LLEXT targets must be serialized. This property contains the \
 previously added LLEXT module for the establishment of a dependency chain."
 )
@@ -151,7 +151,7 @@ set(RIMAGE_TOP ${sof_top_dir}/tools/rimage)
 # Save path to rimage configuration files in cmake cache for later use by
 # rimage during the "west sign" stage
 set(RIMAGE_CONFIG_PATH ${RIMAGE_TOP}/config CACHE PATH
-	" Path to rimage board configuration files")
+    " Path to rimage board configuration files")
 
 # default SOF includes
 target_include_directories(SOF INTERFACE ${RIMAGE_TOP}/src/include)
@@ -545,49 +545,49 @@ zephyr_library_sources_ifdef(CONFIG_MATH_LUT_SINE_FIXED
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_FFT
-		${SOF_MATH_PATH}/fft/fft_common.c
+        ${SOF_MATH_PATH}/fft/fft_common.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_16BIT_FFT
-		${SOF_MATH_PATH}/fft/fft_16.c
-		${SOF_MATH_PATH}/fft/fft_16_hifi3.c
+        ${SOF_MATH_PATH}/fft/fft_16.c
+        ${SOF_MATH_PATH}/fft/fft_16_hifi3.c
 )
 
 zephyr_library_sources_ifdef(ONFIG_MATH_32BIT_FFT
-		${SOF_MATH_PATH}/fft/fft_32.c
-		${SOF_MATH_PATH}/fft/fft_32_hifi3.c
+        ${SOF_MATH_PATH}/fft/fft_32.c
+        ${SOF_MATH_PATH}/fft/fft_32_hifi3.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_DCT
-		${SOF_MATH_PATH}/dct.c
+        ${SOF_MATH_PATH}/dct.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_WINDOW
-		${SOF_MATH_PATH}/window.c
+        ${SOF_MATH_PATH}/window.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_MATRIX
-		${SOF_MATH_PATH}/matrix.c
+        ${SOF_MATH_PATH}/matrix.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_AUDITORY
-		${SOF_MATH_PATH}/auditory/auditory.c
+        ${SOF_MATH_PATH}/auditory/auditory.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_16BIT_MEL_FILTERBANK
-		${SOF_MATH_PATH}/auditory/mel_filterbank_16.c
+        ${SOF_MATH_PATH}/auditory/mel_filterbank_16.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_MATH_32BIT_MEL_FILTERBANK
-		${SOF_MATH_PATH}/auditory/mel_filterbank_32.c
+        ${SOF_MATH_PATH}/auditory/mel_filterbank_32.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_NATURAL_LOGARITHM_FIXED
-		${SOF_MATH_PATH}/log_e.c
+        ${SOF_MATH_PATH}/log_e.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_BINARY_LOGARITHM_FIXED
-		${SOF_MATH_PATH}/base2log.c
+        ${SOF_MATH_PATH}/base2log.c
 )
 
 # SOF module interface functions
@@ -628,7 +628,7 @@ zephyr_library_sources_ifdef(CONFIG_TRACE
 	${SOF_SRC_PATH}/trace/trace.c)
 
 zephyr_library_sources_ifdef(CONFIG_LOG_BACKEND_SOF_PROBE
-		${SOF_SRC_PATH}/logging/log_backend_probe.c)
+      ${SOF_SRC_PATH}/logging/log_backend_probe.c)
 
 # Optional SOF sources - depends on Kconfig - WIP
 
@@ -1162,11 +1162,11 @@ zephyr_library_sources_ifdef(CONFIG_DW_DMA
 )
 
 zephyr_library_sources_ifdef(CONFIG_SOF_BOOT_TEST
-		boot_test.c
+       boot_test.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_SHELL
-		sof_shell.c
+       sof_shell.c
 )
 
 zephyr_library_link_libraries(SOF)