diff --git a/include/spdk/cpuset.h b/include/spdk/cpuset.h
index 153fe0fae0..43f2e73431 100644
--- a/include/spdk/cpuset.h
+++ b/include/spdk/cpuset.h
@@ -50,7 +50,10 @@ extern "C" {
 /**
  * List of CPUs.
  */
-struct spdk_cpuset;
+struct spdk_cpuset {
+	char str[SPDK_CPUSET_SIZE / 4 + 1];
+	uint8_t cpus[SPDK_CPUSET_SIZE / 8];
+};
 
 /**
  * Allocate CPU set object.
diff --git a/lib/util/cpuset.c b/lib/util/cpuset.c
index fdcfd71598..8d7c8dc89a 100644
--- a/lib/util/cpuset.c
+++ b/lib/util/cpuset.c
@@ -34,11 +34,6 @@
 #include "spdk/cpuset.h"
 #include "spdk/log.h"
 
-struct spdk_cpuset {
-	char str[SPDK_CPUSET_SIZE / 4 + 1];
-	uint8_t cpus[SPDK_CPUSET_SIZE / 8];
-};
-
 struct spdk_cpuset *
 spdk_cpuset_alloc(void)
 {