diff --git a/src/obidmscolumn.c b/src/obidmscolumn.c
index 107951f..2073b14 100644
--- a/src/obidmscolumn.c
+++ b/src/obidmscolumn.c
@@ -128,7 +128,7 @@ static char *build_column_file_name(const char *column_name, obiversion_t versio
 	char *filename;
 
 	// Build the database directory name
-	if (asprintf(&filename,"%s@%d.odc", column_name, version_number) > 0)
+	if (asprintf(&filename,"%s@%d.odc", column_name, version_number) < 0)
 	{
 		obi_set_errno(OBICOL_MEMORY_ERROR);
 		obidebug(1, "\nasprintf() function failed");