diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 693569fe..bbc4d55c 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -16,7 +16,7 @@ jobs:
           curl https://get.wasmer.io -sSfL | sh
         displayName: Install wasmer
       - script: |
-          curl -sL -o - https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-10/wasi-sdk-10.0-linux.tar.gz | tar xz -f - -C /opt/
+          curl -sL -o - https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-11/wasi-sdk-11.0-linux.tar.gz | tar xz -f - -C /opt/
           sudo mv /opt/wasi-sdk-* /opt/wasi-sdk
           sudo ln -s /opt/wasi-sdk/share/*sysroot* /opt/wasi-sysroot
         displayName: Install the WASI SDK
diff --git a/src/libsodium/sodium/utils.c b/src/libsodium/sodium/utils.c
index 9bfef745..cdaff9d0 100644
--- a/src/libsodium/sodium/utils.c
+++ b/src/libsodium/sodium/utils.c
@@ -4,12 +4,15 @@
 #include <assert.h>
 #include <errno.h>
 #include <limits.h>
-#include <signal.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
+#ifndef __wasm__
+# include <signal.h>
+#endif
+
 #ifdef HAVE_SYS_MMAN_H
 # include <sys/mman.h>
 #endif
diff --git a/test/default/sodium_utils2.c b/test/default/sodium_utils2.c
index a1801b1a..bd72f36c 100644
--- a/test/default/sodium_utils2.c
+++ b/test/default/sodium_utils2.c
@@ -3,7 +3,9 @@
 #include <sys/types.h>
 
 #include <limits.h>
-#include <signal.h>
+#ifdef HAVE_CATCHABLE_SEGV
+# include <signal.h>
+#endif
 
 #define TEST_NAME "sodium_utils2"
 #include "cmptest.h"
diff --git a/test/default/sodium_utils3.c b/test/default/sodium_utils3.c
index a39f0ee4..3bba037a 100644
--- a/test/default/sodium_utils3.c
+++ b/test/default/sodium_utils3.c
@@ -3,7 +3,9 @@
 #include <sys/types.h>
 
 #include <limits.h>
-#include <signal.h>
+#ifdef HAVE_CATCHABLE_SEGV
+# include <signal.h>
+#endif
 
 #define TEST_NAME "sodium_utils3"
 #include "cmptest.h"