diff --git a/stdlib/public/Platform/glibc.modulemap.gyb b/stdlib/public/Platform/glibc.modulemap.gyb
index e745aac1dbc88..26a846911302a 100644
--- a/stdlib/public/Platform/glibc.modulemap.gyb
+++ b/stdlib/public/Platform/glibc.modulemap.gyb
@@ -44,7 +44,7 @@ module SwiftGlibc [system] {
   header "SwiftGlibc.h"
 
   // <assert.h>'s use of NDEBUG requires textual inclusion. 
-  textual header "assert.h"
+  textual header "${GLIBC_INCLUDE_PATH}/assert.h"
 
   export *
 }