diff --git a/src/common/cpu.c b/src/common/cpu.c
index 1987420..a7d53ca 100644
--- a/src/common/cpu.c
+++ b/src/common/cpu.c
@@ -194,7 +194,7 @@ void init_topology_struct(struct topology* topo, struct cache* cach) {
   topo->sockets = 0;
 #ifdef ARCH_X86
   topo->smt_available = 0;
-  topo->apic = emalloc(sizeof(struct apic));
+  topo->apic = ecalloc(1, sizeof(struct apic));
 #endif
 #endif
 }