diff --git a/src/libs/srtp/CMakeLists.txt b/src/libs/srtp/CMakeLists.txt
index df7c4a57..892b2e04 100644
--- a/src/libs/srtp/CMakeLists.txt
+++ b/src/libs/srtp/CMakeLists.txt
@@ -48,12 +48,13 @@ endif()
 
 if (ANDROID_ABI)
     if (CMAKE_ANDROID_ARCH_ABI MATCHES "arm.*")
-        set (PLATFORM_DEFINES ${PLATFORM_DEFINES} CPU_RISC)
+        message ("ARM based processor found, defining CPU_RISC")
+        set (PLATFORM_DEFINES ${PLATFORM_DEFINES} -DCPU_RISC)
     else()
-        set (PLATFORM_DEFINES ${PLATFORM_DEFINES} CPU_CISC)
+        set (PLATFORM_DEFINES ${PLATFORM_DEFINES} -DCPU_CISC)
     endif()
 else()
     set (PLATFORM_DEFINES ${PLATFORM_DEFINES} CPU_CISC)
 endif()
 
-target_compile_definitions(srtp PUBLIC -DHAVE_INTTYPES_H -D${PLATFORM_DEFINES})
+target_compile_definitions(srtp PUBLIC -DHAVE_INTTYPES_H ${PLATFORM_DEFINES})