diff --git a/IlmBase/IlmThread/CMakeLists.txt b/IlmBase/IlmThread/CMakeLists.txt
index 6f1ff13c12..3a1d031d91 100644
--- a/IlmBase/IlmThread/CMakeLists.txt
+++ b/IlmBase/IlmThread/CMakeLists.txt
@@ -47,7 +47,7 @@ IF (BUILD_STATIC_LIBS)
   SET_TARGET_PROPERTIES ( IlmThread_static
     PROPERTIES
     VERSION ${ILMBASE_VERSION_MAJOR}.${ILMBASE_VERSION_MINOR}.${ILMBASE_VERSION_PATCH}
-    OUTPUT_NAME "IexMath${ILMBASE_LIBSUFFIX}_s"
+    OUTPUT_NAME "IlmThread${ILMBASE_LIBSUFFIX}_s"
     )
 ENDIF ()