diff --git a/changes/bug28974 b/changes/bug28974
new file mode 100644
index 0000000000..2d74f5674f
--- /dev/null
+++ b/changes/bug28974
@@ -0,0 +1,3 @@
+  o Minor bugfixes (compilation):
+    - Fix compilation for Android by adding a missing header to
+      freespace.c.  Fixes bug 28974; bugfix on 0.3.5.1-alpha.
diff --git a/src/lib/fs/freespace.c b/src/lib/fs/freespace.c
index 2dbba3c5f8..c18b1e0234 100644
--- a/src/lib/fs/freespace.c
+++ b/src/lib/fs/freespace.c
@@ -19,6 +19,7 @@
 #include <windows.h>
 #endif
 
+#include <errno.h>
 #include <string.h>
 
 /** Return the amount of free disk space we have permission to use, in