diff --git a/passes/memory/memory_libmap.cc b/passes/memory/memory_libmap.cc
index 9e147b0bf..aee07c607 100644
--- a/passes/memory/memory_libmap.cc
+++ b/passes/memory/memory_libmap.cc
@@ -431,6 +431,7 @@ void MemMapping::determine_style() {
 	style = "";
 	if (mem.get_bool_attribute(ID::lram)) {
 		kind = RamKind::Huge;
+		log("found attribute 'lram' on memory %s.%s, forced mapping to huge RAM\n", log_id(mem.module->name), log_id(mem.memid));
 		return;
 	}
 	for (auto attr: {ID::ram_block, ID::rom_block, ID::ram_style, ID::rom_style, ID::ramstyle, ID::romstyle, ID::syn_ramstyle, ID::syn_romstyle}) {
@@ -438,6 +439,7 @@ void MemMapping::determine_style() {
 			Const val = mem.attributes.at(attr);
 			if (val == 1) {
 				kind = RamKind::NotLogic;
+				log("found attribute '%s = 1' on memory %s.%s, disabled mapping to FF\n", log_id(attr), log_id(mem.module->name), log_id(mem.memid));
 				return;
 			}
 			std::string val_s = val.decode_string();
@@ -450,15 +452,20 @@ void MemMapping::determine_style() {
 				// Nothing.
 			} else if (val_s == "logic" || val_s == "registers") {
 				kind = RamKind::Logic;
+				log("found attribute '%s = %s' on memory %s.%s, forced mapping to FF\n", log_id(attr), val_s.c_str(), log_id(mem.module->name), log_id(mem.memid));
 			} else if (val_s == "distributed") {
 				kind = RamKind::Distributed;
+				log("found attribute '%s = %s' on memory %s.%s, forced mapping to distributed RAM\n", log_id(attr), val_s.c_str(), log_id(mem.module->name), log_id(mem.memid));
 			} else if (val_s == "block" || val_s == "block_ram" || val_s == "ebr") {
 				kind = RamKind::Block;
+				log("found attribute '%s = %s' on memory %s.%s, forced mapping to block RAM\n", log_id(attr), val_s.c_str(), log_id(mem.module->name), log_id(mem.memid));
 			} else if (val_s == "huge" || val_s == "ultra") {
 				kind = RamKind::Huge;
+				log("found attribute '%s = %s' on memory %s.%s, forced mapping to huge RAM\n", log_id(attr), val_s.c_str(), log_id(mem.module->name), log_id(mem.memid));
 			} else {
 				kind = RamKind::NotLogic;
 				style = val_s;
+				log("found attribute '%s = %s' on memory %s.%s, forced mapping to %s RAM\n", log_id(attr), val_s.c_str(), log_id(mem.module->name), log_id(mem.memid), val_s.c_str());
 			}
 			return;
 		}