diff --git a/src/bin/common/color.c b/src/bin/common/color.c
index 4cefed38..a71b7410 100644
--- a/src/bin/common/color.c
+++ b/src/bin/common/color.c
@@ -45,7 +45,7 @@
 #include <lcms.h>
 #endif
 
-#ifdef USE_LEGACY
+#ifdef OPJ_USE_LEGACY
 #define OPJ_CLRSPC_GRAY CLRSPC_GRAY
 #define OPJ_CLRSPC_SRGB CLRSPC_SRGB
 #endif
diff --git a/src/bin/jpwl/CMakeLists.txt b/src/bin/jpwl/CMakeLists.txt
index ea522068..7bb0b496 100644
--- a/src/bin/jpwl/CMakeLists.txt
+++ b/src/bin/jpwl/CMakeLists.txt
@@ -27,7 +27,7 @@ if(WIN32)
   endif()
 endif()
 
-add_definitions(-DUSE_LEGACY)
+add_definitions(-DOPJ_USE_LEGACY)
 foreach(exe decompress compress)
   set(jpwl_exe opj_jpwl_${exe})
   set(jp2_exe opj_${exe})
diff --git a/src/bin/mj2/CMakeLists.txt b/src/bin/mj2/CMakeLists.txt
index 93ba05b8..a270829f 100644
--- a/src/bin/mj2/CMakeLists.txt
+++ b/src/bin/mj2/CMakeLists.txt
@@ -24,7 +24,7 @@ foreach(exe
   opj_mj2_decompress
   opj_mj2_compress
 )
-  add_definitions(-DUSE_LEGACY)
+  add_definitions(-DOPJ_USE_LEGACY)
   add_executable(${exe}
     ${exe}.c
     ${common_SRCS}