diff --git a/ortools/dotnet/Doxyfile.in b/ortools/dotnet/Doxyfile.in
index abb76515e9..705bb2febb 100644
--- a/ortools/dotnet/Doxyfile.in
+++ b/ortools/dotnet/Doxyfile.in
@@ -993,8 +993,8 @@ EXCLUDE_SYMLINKS       = NO
 EXCLUDE_PATTERNS       = *Test.cs \
                          */docs/* \
                          */cpp/* \
-                         */csharp/* \
                          */java/* \
+                         */go/* \
                          */python/* \
                          */samples/* \
                          */obj/* \
diff --git a/ortools/java/Doxyfile.in b/ortools/java/Doxyfile.in
index c29bbf1fbb..5e35f02281 100644
--- a/ortools/java/Doxyfile.in
+++ b/ortools/java/Doxyfile.in
@@ -995,6 +995,7 @@ EXCLUDE_PATTERNS       = *Test.java \
                          */cpp/* \
                          */csharp/* \
                          */dotnet/* \
+                         */go/* \
                          */python/* \
                          */samples/* \
                          */SWIGTYPE* \
diff --git a/ortools/python/Doxyfile.in b/ortools/python/Doxyfile.in
index 33ab9df601..4e773821e7 100644
--- a/ortools/python/Doxyfile.in
+++ b/ortools/python/Doxyfile.in
@@ -990,8 +990,7 @@ EXCLUDE_SYMLINKS       = NO
 # Note that the wildcards are matched against the file with absolute path, so to
 # exclude all test directories for example use the pattern */test/*
 
-EXCLUDE_PATTERNS       = *Test.java \
-                         *_test.py \
+EXCLUDE_PATTERNS       = *_test.py \
                          */docs/* \
                          */cpp/* \
                          */csharp/* \