diff --git a/CMakeLists.txt b/CMakeLists.txt
index b10f07c..bc0c5a5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,10 +41,10 @@ if (NOT EXISTS ${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
 
     if (NOT WINDOWS)
         execute_process(COMMAND conan install ${CMAKE_SOURCE_DIR} --install-folder=${CMAKE_BINARY_DIR} --build outdated
-                -s compiler=clang -s compiler.libcxx=libstdc++11 -s compiler.version=${VERSION} -o *:staticC=${STATICC})
+                -s compiler=clang -s compiler.libcxx=libstdc++11 -s compiler.version=${VERSION} -o *:staticC=${CONAN_STATIC_C})
     else ()
         execute_process(COMMAND conan install ${CMAKE_SOURCE_DIR} --install-folder=${CMAKE_BINARY_DIR} --build outdated
-                -s compiler=gcc -s compiler.libcxx=libstdc++11 -s compiler.version=${VERSION} -s os=Windows -o *:staticC=${STATICC})
+                -s compiler=gcc -s compiler.libcxx=libstdc++11 -s compiler.version=${VERSION} -s os=Windows -o *:staticC=${CONAN_STATIC_C})
     endif ()
 endif ()
 include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)