diff --git a/lib/libc/glibc/sysdeps/nptl/bits/thread-shared-types.h b/lib/libc/glibc/sysdeps/nptl/bits/thread-shared-types.h
index 7c24c0a6be..e614c7f3c9 100644
--- a/lib/libc/glibc/sysdeps/nptl/bits/thread-shared-types.h
+++ b/lib/libc/glibc/sysdeps/nptl/bits/thread-shared-types.h
@@ -99,6 +99,8 @@ struct __pthread_cond_s
   unsigned int __g1_orig_size;
   unsigned int __wrefs;
   unsigned int __g_signals[2];
+  unsigned int __unused_initialized_1;
+  unsigned int __unused_initialized_2;
 };
 
 typedef unsigned int __tss_t;
diff --git a/lib/libc/glibc/sysdeps/nptl/pthread.h b/lib/libc/glibc/sysdeps/nptl/pthread.h
index 050b4ab8d1..9ad36cabe9 100644
--- a/lib/libc/glibc/sysdeps/nptl/pthread.h
+++ b/lib/libc/glibc/sysdeps/nptl/pthread.h
@@ -152,7 +152,7 @@ enum
 
 
 /* Conditional variable handling.  */
-#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, 0, 0, {0, 0} } }
+#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, 0, 0, {0, 0}, 0, 0 } }
 
 
 /* Cleanup buffers */
diff --git a/lib/libc/include/generic-glibc/bits/thread-shared-types.h b/lib/libc/include/generic-glibc/bits/thread-shared-types.h
index 0afb8c2c6b..119dd8ae55 100644
--- a/lib/libc/include/generic-glibc/bits/thread-shared-types.h
+++ b/lib/libc/include/generic-glibc/bits/thread-shared-types.h
@@ -99,6 +99,8 @@ struct __pthread_cond_s
   unsigned int __g1_orig_size;
   unsigned int __wrefs;
   unsigned int __g_signals[2];
+  unsigned int __unused_initialized_1;
+  unsigned int __unused_initialized_2;
 };
 
 typedef unsigned int __tss_t;
diff --git a/lib/libc/include/generic-glibc/pthread.h b/lib/libc/include/generic-glibc/pthread.h
index 5a9977262e..1c7bf92e8c 100644
--- a/lib/libc/include/generic-glibc/pthread.h
+++ b/lib/libc/include/generic-glibc/pthread.h
@@ -152,7 +152,7 @@ enum
 
 
 /* Conditional variable handling.  */
-#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, 0, 0, {0, 0} } }
+#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, 0, 0, {0, 0}, 0, 0 } }
 
 
 /* Cleanup buffers */