diff --git a/package/azure-iot-sdk-c/azure-iot-sdk-c.mk b/package/azure-iot-sdk-c/azure-iot-sdk-c.mk
index 3618e591a9..8b3f670399 100644
--- a/package/azure-iot-sdk-c/azure-iot-sdk-c.mk
+++ b/package/azure-iot-sdk-c/azure-iot-sdk-c.mk
@@ -14,11 +14,6 @@ AZURE_IOT_SDK_C_INSTALL_STAGING = YES
 AZURE_IOT_SDK_C_DEPENDENCIES = libxml2 openssl libcurl util-linux
 AZURE_IOT_SDK_C_CONF_OPTS = -Dskip_samples=ON
 
-# When cross-compiling, CMake doesn't internally pass any
-# CMAKE_SYSTEM_VERSION, so pass a dummy version to make the c-utility
-# WIN32 test happy.
-AZURE_IOT_SDK_C_CONF_OPTS += -DCMAKE_SYSTEM_VERSION=1.0
-
 # The project only supports building one kind of library.
 # Further the install target installs the wrong files, so we do it here:
 ifeq ($(BR2_STATIC_LIBS),y)