diff --git a/indra/cmake/LLPhysicsExtensions.cmake b/indra/cmake/LLPhysicsExtensions.cmake
index a2fee7ea1ea6f013ddf7e4ee68b1b0c2d674d6d5..2b58028b37e2f5f0c3171852208eb6b13a197313 100644
--- a/indra/cmake/LLPhysicsExtensions.cmake
+++ b/indra/cmake/LLPhysicsExtensions.cmake
@@ -27,7 +27,7 @@ elseif (HAVOK_TPV AND NOT LINUX)
    if(WINDOWS)
       set(LLPHYSICSEXTENSIONS_LIBRARIES    ${ARCH_PREBUILT_DIRS}/llphysicsextensions_tpv.lib)
    else()
-      set(LLPHYSICSEXTENSIONS_LIBRARIES    ${ARCH_PREBUILT_DIRS}/llphysicsextensions_tpv.a)
+      set(LLPHYSICSEXTENSIONS_LIBRARIES    ${ARCH_PREBUILT_DIRS}/libllphysicsextensions_tpv.a)
    endif()
    set(LLPHYSICSEXTENSIONS_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/llphysicsextensions) 
 else (HAVOK)