diff --git a/Makefile.template b/Makefile.template
index 81182eb3589..cfd07d1f240 100644
--- a/Makefile.template
+++ b/Makefile.template
@@ -135,6 +135,7 @@ endif
 	NNFW_WORKSPACE="$(WORKSPACE)" NNFW_INSTALL_PREFIX=$(INSTALL_PATH) ./nnfw configure \
 		-DCMAKE_BUILD_TYPE=$(BUILD_TYPE_LC) \
 		-DNNFW_OVERLAY_DIR=$(OVERLAY_FOLDER) \
+		-DACL_BUILD_THREADS=$(NPROCS) \
 		$(OPTIONS)
 	touch $(TIMESTAMP_CONFIGURE)
 
diff --git a/infra/nnfw/cmake/packages/ARMComputeConfig.cmake b/infra/nnfw/cmake/packages/ARMComputeConfig.cmake
index 4ee0351c6e9..67f6ef8a2da 100644
--- a/infra/nnfw/cmake/packages/ARMComputeConfig.cmake
+++ b/infra/nnfw/cmake/packages/ARMComputeConfig.cmake
@@ -136,8 +136,14 @@ function(_ARMCompute_Build ARMCompute_INSTALL_PREFIX)
   list(APPEND SCONS_OPTIONS "examples=0")
   list(APPEND SCONS_OPTIONS "Werror=0")
   list(APPEND SCONS_OPTIONS "os=${TARGET_OS}")
-  include(ProcessorCount)
-  ProcessorCount(N)
+
+  if(DEFINED ACL_BUILD_THREADS)
+    set(N ${ACL_BUILD_THREADS})
+  else(DEFINED ACL_BUILD_THREADS)
+    include(ProcessorCount)
+    ProcessorCount(N)
+  endif(DEFINED ACL_BUILD_THREADS)
+
   if((NOT N EQUAL 0) AND BUILD_EXT_MULTITHREAD)
     list(APPEND SCONS_OPTIONS -j${N})
   endif()