diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2e5a8d0e81..e4bab6340f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -290,11 +290,18 @@ if(WIN32)
         SPIRV-Tools-opt PROPERTIES IMPORTED_LOCATION "${SPIRV_TOOLS_OPT_LIB}" IMPORTED_LOCATION_DEBUG "${SPIRV_TOOLS_OPT_DLIB}")
 endif()
 
+if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
+    find_library(LIBRT rt)
+endif()
+
 if(WIN32)
     set(SPIRV_TOOLS_LIBRARIES SPIRV-Tools-opt SPIRV-Tools)
     set(GLSLANG_LIBRARIES glslang OGLCompiler OSDependent HLSL SPIRV SPVRemapper ${SPIRV_TOOLS_LIBRARIES})
 else()
-    set(SPIRV_TOOLS_LIBRARIES ${SPIRV_TOOLS_OPT_LIB} ${SPIRV_TOOLS_LIB})
+    set(SPIRV_TOOLS_LIBRARIES
+        ${SPIRV_TOOLS_OPT_LIB}
+        ${SPIRV_TOOLS_LIB}
+        ${LIBRT})
     set(GLSLANG_LIBRARIES
         ${GLSLANG_LIB}
         ${OGLCompiler_LIB}
diff --git a/Sample-Programs/Hologram/CMakeLists.txt b/Sample-Programs/Hologram/CMakeLists.txt
index cc041a4287..dcf291b738 100644
--- a/Sample-Programs/Hologram/CMakeLists.txt
+++ b/Sample-Programs/Hologram/CMakeLists.txt
@@ -96,6 +96,9 @@ endif()
 add_executable(Hologram ${sources})
 target_compile_definitions(Hologram ${definitions})
 target_include_directories(Hologram ${includes})
-target_link_libraries(Hologram ${libraries})
+if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
+  find_library(LIBRT rt)
+endif()
+target_link_libraries(Hologram ${libraries} ${LIBRT})
 
 install(TARGETS Hologram RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})