diff --git a/code/STEPFile.h b/code/STEPFile.h
index aa32fe8d9..be77a2ec2 100644
--- a/code/STEPFile.h
+++ b/code/STEPFile.h
@@ -47,7 +47,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <typeinfo>
 
 //
-#if _MSC_VER >= 1500 || (defined __GNUC___)
+#if _MSC_VER > 1500 || (defined __GNUC___)
 #	define ASSIMP_STEP_USE_UNORDERED_MULTIMAP
 #	else
 #	define step_unordered_map map