diff --git a/btf_encoder.c b/btf_encoder.c
index 2ed7217..bfdc304 100644
--- a/btf_encoder.c
+++ b/btf_encoder.c
@@ -541,7 +541,7 @@ static int32_t btf_encoder__add_func_proto(struct btf_encoder *encoder, struct c
 	/* add parameters */
 	param_idx = 0;
 	ftype__for_each_parameter(ftype, param) {
-		const char *name = dwarves__active_loader->strings__ptr(cu, param->name);
+		const char *name = parameter__name(param);
 
 		type_id = param->tag.type == 0 ? 0 : type_id_off + param->tag.type;
 		++param_idx;
@@ -1135,7 +1135,7 @@ static bool has_arg_names(struct cu *cu, struct ftype *ftype)
 	const char *name;
 
 	ftype__for_each_parameter(ftype, param) {
-		name = dwarves__active_loader->strings__ptr(cu, param->name);
+		name = parameter__name(param);
 		if (name == NULL)
 			return false;
 	}
diff --git a/btf_loader.c b/btf_loader.c
index 660125e..8eb9206 100644
--- a/btf_loader.c
+++ b/btf_loader.c
@@ -69,7 +69,7 @@ static int cu__load_ftype(struct cu *cu, struct ftype *proto, uint32_t tag, cons
 				goto out_free_parameters;
 			p->tag.tag  = DW_TAG_formal_parameter;
 			p->tag.type = param->type;
-			p->name	    = param->name_off;
+			p->name	    = cu__btf_str(cu, param->name_off);
 			ftype__add_parameter(proto, p);
 		}
 	}
diff --git a/ctracer.c b/ctracer.c
index e244fe6..350e74c 100644
--- a/ctracer.c
+++ b/ctracer.c
@@ -698,14 +698,13 @@ static int function__emit_probes(struct function *func, uint32_t function_id,
 			continue;
 
 		if (member != NULL)
-			fprintf(fp_methods, "\tif ($%s)\n\t",
-				parameter__name(pos, cu));
+			fprintf(fp_methods, "\tif ($%s)\n\t", parameter__name(pos));
 
 		fprintf(fp_methods,
 			"\tctracer__method_hook(%d, %d, $%s%s%s, %d);\n",
 			probe_type,
 			function_id,
-			parameter__name(pos, cu),
+			parameter__name(pos),
 			member ? "->" : "", member ?: "",
 			class__size(mini_class));
 		break;
diff --git a/dwarf_loader.c b/dwarf_loader.c
index 5a149cb..5c60a12 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -913,7 +913,7 @@ static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu)
 
 	if (parm != NULL) {
 		tag__init(&parm->tag, cu, die);
-		parm->name = strings__add(strings, attr_string(die, DW_AT_name));
+		parm->name = strdup_attr_string(die, DW_AT_name);
 	}
 
 	return parm;
diff --git a/dwarves.h b/dwarves.h
index b66bf7c..94a6f18 100644
--- a/dwarves.h
+++ b/dwarves.h
@@ -720,8 +720,8 @@ size_t lexblock__fprintf(const struct lexblock *lexblock, const struct cu *cu,
 			 const struct conf_fprintf *conf, FILE *fp);
 
 struct parameter {
-	struct tag	 tag;
-	strings_t	 name;
+	struct tag tag;
+	const char *name;
 };
 
 static inline struct parameter *tag__parameter(const struct tag *tag)
@@ -729,10 +729,9 @@ static inline struct parameter *tag__parameter(const struct tag *tag)
 	return (struct parameter *)tag;
 }
 
-static inline const char *parameter__name(const struct parameter *parm,
-					  const struct cu *cu)
+static inline const char *parameter__name(const struct parameter *parm)
 {
-	return cu__string(cu, parm->name);
+	return parm->name;
 }
 
 /*
diff --git a/dwarves_fprintf.c b/dwarves_fprintf.c
index 37537ca..b635685 100644
--- a/dwarves_fprintf.c
+++ b/dwarves_fprintf.c
@@ -1084,7 +1084,7 @@ size_t ftype__fprintf_parms(const struct ftype *ftype,
 						   indent, tabs);
 		} else
 			first_parm = 0;
-		name = conf->no_parm_names ? NULL : parameter__name(pos, cu);
+		name = conf->no_parm_names ? NULL : parameter__name(pos);
 		type = cu__type(cu, pos->tag.type);
 		if (type == NULL) {
 			snprintf(sbf, sizeof(sbf),
diff --git a/syscse.c b/syscse.c
index 33fe65e..5d2c6fd 100644
--- a/syscse.c
+++ b/syscse.c
@@ -77,8 +77,7 @@ static void emit_wrapper(struct function *f, struct cu *cu)
 					printf("wrap_%s:\n", name);
 					needs_wrapper = 1;
 				}
-				zero_extend(regparm, bt, cu,
-					    parameter__name(parm, cu));
+				zero_extend(regparm, bt, cu, parameter__name(parm));
 			}
 		}
 		++regparm;