diff --git a/workspace_tools/build_api.py b/workspace_tools/build_api.py
index e82ede1c42..9a7255a27f 100644
--- a/workspace_tools/build_api.py
+++ b/workspace_tools/build_api.py
@@ -16,11 +16,12 @@ limitations under the License.
 """
 
 import tempfile
+import os
 from os.path import join, exists, basename
 from shutil import rmtree
 from types import ListType
 
-from workspace_tools.utils import mkdir, run_cmd
+from workspace_tools.utils import mkdir, run_cmd, run_cmd_ext
 from workspace_tools.toolchains import TOOLCHAIN_CLASSES
 from workspace_tools.paths import MBED_TARGETS_PATH, MBED_LIBRARIES, MBED_API, MBED_HAL, MBED_COMMON
 from workspace_tools.libraries import Library
@@ -290,7 +291,7 @@ def static_analysis_scan(target, toolchain_name, CPPCHECK_CMD, CPPCHECK_MSG_FORM
     tmp_file.close()
     check_cmd += " --file-list=%s"% tmp_file.name
 
-    _stdout, _stderr, _rc = run_cmd(check_cmd)
+    _stdout, _stderr, _rc = run_cmd_ext(check_cmd.split() if os.name == 'posix' else check_cmd)
     if verbose:
         print _stdout
     print _stderr
@@ -351,7 +352,7 @@ def static_analysis_scan(target, toolchain_name, CPPCHECK_CMD, CPPCHECK_MSG_FORM
     tmp_file.close()
     check_cmd += " --file-list=%s"% tmp_file.name
 
-    _stdout, _stderr, _rc = run_cmd(check_cmd)
+    _stdout, _stderr, _rc = run_cmd_ext(check_cmd.split() if os.name == 'posix' else check_cmd)
     if verbose:
         print _stdout
     print _stderr
@@ -433,7 +434,7 @@ def static_analysis_scan_library(src_paths, build_path, target, toolchain_name,
     tmp_file.close()
     check_cmd += " --file-list=%s"% tmp_file.name
 
-    _stdout, _stderr, _rc = run_cmd(check_cmd)
+    _stdout, _stderr, _rc = run_cmd_ext(check_cmd.split() if os.name == 'posix' else check_cmd)
     if verbose:
         print _stdout
     print _stderr
diff --git a/workspace_tools/utils.py b/workspace_tools/utils.py
index 7554dda98a..2f53d9a5d6 100644
--- a/workspace_tools/utils.py
+++ b/workspace_tools/utils.py
@@ -36,6 +36,13 @@ def run_cmd(command, wd=None, redirect=False):
     return _stdout, _stderr, p.returncode
 
 
+def run_cmd_ext(command):
+    import subprocess
+    p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    _stdout, _stderr = p.communicate()
+    return _stdout, _stderr, p.returncode
+
+
 def mkdir(path):
     if not exists(path):
         makedirs(path)