diff --git a/src/system/kernel/lib/Jamfile b/src/system/kernel/lib/Jamfile
index 5d4cba6850..f778e101b9 100644
--- a/src/system/kernel/lib/Jamfile
+++ b/src/system/kernel/lib/Jamfile
@@ -112,7 +112,7 @@ KernelMergeObject kernel_lib_posix.o :
 	strlen.cpp
 	strncat.c
 	strncmp.c
-	strncpy.c
+	strncpy.cpp
 	strndup.cpp
 	strnlen.cpp
 	strpbrk.c
diff --git a/src/system/libroot/posix/string/Jamfile b/src/system/libroot/posix/string/Jamfile
index 9f363f6b73..68eed17fe0 100644
--- a/src/system/libroot/posix/string/Jamfile
+++ b/src/system/libroot/posix/string/Jamfile
@@ -32,7 +32,7 @@ MergeObject posix_string.o :
 	strlwr.c
 	strncat.c
 	strncmp.c
-	strncpy.c
+	strncpy.cpp
 	strndup.cpp
 	strnlen.cpp
 	strpbrk.c
diff --git a/src/system/libroot/posix/string/strncpy.c b/src/system/libroot/posix/string/strncpy.cpp
similarity index 100%
rename from src/system/libroot/posix/string/strncpy.c
rename to src/system/libroot/posix/string/strncpy.cpp