diff --git a/compiler/posixc/getc_unlocked.c b/compiler/posixc/getc_unlocked.c
index e9bb24fa9e..83398f1715 100644
--- a/compiler/posixc/getc_unlocked.c
+++ b/compiler/posixc/getc_unlocked.c
@@ -45,5 +45,5 @@
 
 ******************************************************************************/
 {
-    return getc(stream);
+    return fgetc(stream);
 }