diff --git a/src/pseudomap.c b/src/pseudomap.c
index 73bcaff..3b62e5b 100644
--- a/src/pseudomap.c
+++ b/src/pseudomap.c
@@ -28,6 +28,7 @@ pseudomap *pseudomap_create(void) {
 }
 
 void pseudomap_destroy(pseudomap *o) {
+	if(!o) return;
 	while(sblist_getsize(o)) {
 		/* retrieve latest element, and "shrink" list in place,
 		   so we don't have to constantly rearrange list items