diff --git a/src/jsontestrunner/CMakeLists.txt b/src/jsontestrunner/CMakeLists.txt
index cb8ce50..023a44e 100644
--- a/src/jsontestrunner/CMakeLists.txt
+++ b/src/jsontestrunner/CMakeLists.txt
@@ -5,7 +5,7 @@ add_executable(jsontestrunner_exe
                )
 
 if(BUILD_SHARED_LIBS)
-    add_compile_definitions( -DJSON_DLL )
+    add_compile_definitions( JSON_DLL )
 endif()
 target_link_libraries(jsontestrunner_exe jsoncpp_lib)
 
diff --git a/src/lib_json/CMakeLists.txt b/src/lib_json/CMakeLists.txt
index a8d0733..034f438 100644
--- a/src/lib_json/CMakeLists.txt
+++ b/src/lib_json/CMakeLists.txt
@@ -34,7 +34,7 @@ endif()
 
 if(NOT (HAVE_CLOCALE AND HAVE_LCONV_SIZE AND HAVE_DECIMAL_POINT AND HAVE_LOCALECONV))
     message(WARNING "Locale functionality is not supported")
-    add_compile_definitions(-DJSONCPP_NO_LOCALE_SUPPORT)
+    add_compile_definitions(JSONCPP_NO_LOCALE_SUPPORT)
 endif()
 
 set( JSONCPP_INCLUDE_DIR ../../include )
@@ -68,7 +68,7 @@ else(JSONCPP_WITH_CMAKE_PACKAGE)
 endif()
 
 if(BUILD_SHARED_LIBS)
-    add_compile_definitions( -DJSON_DLL_BUILD )
+    add_compile_definitions( JSON_DLL_BUILD )
 endif()
 
 
diff --git a/src/test_lib_json/CMakeLists.txt b/src/test_lib_json/CMakeLists.txt
index 999d3e8..a8740da 100644
--- a/src/test_lib_json/CMakeLists.txt
+++ b/src/test_lib_json/CMakeLists.txt
@@ -8,7 +8,7 @@ add_executable( jsoncpp_test
 
 
 if(BUILD_SHARED_LIBS)
-    add_compile_definitions( -DJSON_DLL )
+    add_compile_definitions( JSON_DLL )
 endif()
 target_link_libraries(jsoncpp_test jsoncpp_lib)