diff --git a/src/osgPlugins/tga/ReaderWriterTGA.cpp b/src/osgPlugins/tga/ReaderWriterTGA.cpp
index f78aad3a3..697ab3e7c 100644
--- a/src/osgPlugins/tga/ReaderWriterTGA.cpp
+++ b/src/osgPlugins/tga/ReaderWriterTGA.cpp
@@ -325,7 +325,7 @@ struct SafeArray
     operator T*() { return impl; }
 
     template<typename U>
-    explicit operator U() { return (U)impl; }
+    operator U() { return (U)impl; }
 
 private:
     T* impl;