diff --git a/src/training/Makefile.am b/src/training/Makefile.am
index 3a8e6c1a..c7b01d73 100644
--- a/src/training/Makefile.am
+++ b/src/training/Makefile.am
@@ -77,7 +77,7 @@ libtesseract_training_la_SOURCES = \
     unicharset_training_utils.cpp \
     validate_grapheme.cpp \
     validate_indic.cpp \
-    validate_javanese.h \
+    validate_javanese.cpp \
     validate_khmer.cpp \
     validate_myanmar.cpp \
     validator.cpp