diff --git a/samples/cvtcolor_demo/src/CMakeLists.txt b/samples/cvtcolor_demo/src/CMakeLists.txt
index 3d78a56..6e300e5 100644
--- a/samples/cvtcolor_demo/src/CMakeLists.txt
+++ b/samples/cvtcolor_demo/src/CMakeLists.txt
@@ -5,6 +5,7 @@ add_executable(rga_cvtcolor_demo
 target_link_libraries(rga_cvtcolor_demo
     utils_obj
     ${RGA_LIB}
+    dl
 )
 install(TARGETS rga_cvtcolor_demo DESTINATION ${CMAKE_INSTALL_BINDIR})
 
@@ -15,6 +16,7 @@ add_executable(rga_cvtcolor_csc_demo
 target_link_libraries(rga_cvtcolor_csc_demo
     utils_obj
     ${RGA_LIB}
+    dl
 )
 install(TARGETS rga_cvtcolor_csc_demo DESTINATION ${CMAKE_INSTALL_BINDIR})
 
@@ -25,5 +27,6 @@ add_executable(rga_cvtcolor_gray256_demo
 target_link_libraries(rga_cvtcolor_gray256_demo
     utils_obj
     ${RGA_LIB}
+    dl
 )
 install(TARGETS rga_cvtcolor_gray256_demo DESTINATION ${CMAKE_INSTALL_BINDIR})
diff --git a/samples/cvtcolor_demo/src/rga_cvtcolor_gray256_demo.cpp b/samples/cvtcolor_demo/src/rga_cvtcolor_gray256_demo.cpp
index 299af98..e9199df 100644
--- a/samples/cvtcolor_demo/src/rga_cvtcolor_gray256_demo.cpp
+++ b/samples/cvtcolor_demo/src/rga_cvtcolor_gray256_demo.cpp
@@ -29,7 +29,6 @@
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/mman.h>
-#include <>
 #include <fcntl.h>
 #include <signal.h>
 #include <unistd.h>