diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5d406dc95a..055d4f5ab7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -191,7 +191,7 @@ else()
             string(FIND "${UC_COMPILER_MACRO}" "__arm__" UC_RET)
             if(${UC_RET} GREATER_EQUAL "0")
                 set(UNICORN_TARGET_ARCH "arm")
-                set(UNICORN_CFLAGS "${UNICORN_CFLAGS} -latomic")
+                set(UNICORN_CFLAGS ${UNICORN_CFLAGS} -latomic)
                 break()
             endif()
             string(FIND "${UC_COMPILER_MACRO}" "__aarch64__" UC_RET)
@@ -222,7 +222,7 @@ else()
             string(FIND "${UC_COMPILER_MACRO}" "__riscv" UC_RET)
             if(${UC_RET} GREATER_EQUAL "0")
                 set(UNICORN_TARGET_ARCH "riscv")
-                set(UNICORN_CFLAGS "${UNICORN_CFLAGS} -latomic")
+                set(UNICORN_CFLAGS ${UNICORN_CFLAGS} -latomic)
                 break()
             endif()
             string(FIND "${UC_COMPILER_MACRO}" "__s390__" UC_RET)