5 files changed, 6 insertions, 0 deletions
diff --git a/src/nvim/os/event.c b/src/nvim/os/event.c
index a8bd6ca886..a9e97c9190 100644
--- a/src/nvim/os/event.c
+++ b/src/nvim/os/event.c
@@ -1,3 +1,4 @@
+#include <assert.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdlib.h>
diff --git a/src/nvim/os/fs.c b/src/nvim/os/fs.c
index da89b41902..5ccefd8ac5 100644
--- a/src/nvim/os/fs.c
+++ b/src/nvim/os/fs.c
@@ -1,6 +1,8 @@
 // fs.c -- filesystem access
 #include <stdbool.h>
 
+#include <assert.h>
+
 #include "nvim/os/os.h"
 #include "nvim/ascii.h"
 #include "nvim/memory.h"
diff --git a/src/nvim/os/rstream.c b/src/nvim/os/rstream.c
index 04687cbe9a..5286599586 100644
--- a/src/nvim/os/rstream.c
+++ b/src/nvim/os/rstream.c
@@ -1,3 +1,4 @@
+#include <assert.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdlib.h>
diff --git a/src/nvim/os/uv_helpers.c b/src/nvim/os/uv_helpers.c
index a3c9dd5fbf..89687bdac7 100644
--- a/src/nvim/os/uv_helpers.c
+++ b/src/nvim/os/uv_helpers.c
@@ -1,3 +1,4 @@
+#include <assert.h>
 #include <uv.h>
 
 #include "nvim/os/uv_helpers.h"
diff --git a/src/nvim/os/wstream.c b/src/nvim/os/wstream.c
index 13b8e8d9dc..3c4b5b6171 100644
--- a/src/nvim/os/wstream.c
+++ b/src/nvim/os/wstream.c
@@ -1,3 +1,4 @@
+#include <assert.h>
 #include <stdint.h>
 #include <stdbool.h>