diff --git a/bench/compose.c b/bench/compose.c
index 6951bd5..7ff0798 100644
--- a/bench/compose.c
+++ b/bench/compose.c
@@ -46,7 +46,7 @@ main(void)
     assert(ctx);
 
     path = test_get_path("compose/en_US.UTF-8/Compose");
-    file = fopen(path, "r");
+    file = fopen(path, "rb");
     if (file == NULL) {
         perror(path);
         free(path);
diff --git a/fuzz/compose/target.c b/fuzz/compose/target.c
index a7f15c1..25b4a25 100644
--- a/fuzz/compose/target.c
+++ b/fuzz/compose/target.c
@@ -31,7 +31,7 @@ main(int argc, char *argv[])
     while (__AFL_LOOP(1000))
 #endif
     {
-        file = fopen(argv[1], "r");
+        file = fopen(argv[1], "rb");
         assert(file);
         table = xkb_compose_table_new_from_file(ctx, file,
                                                 "en_US.UTF-8",
diff --git a/fuzz/keymap/target.c b/fuzz/keymap/target.c
index e8c6fb5..9984476 100644
--- a/fuzz/keymap/target.c
+++ b/fuzz/keymap/target.c
@@ -30,7 +30,7 @@ main(int argc, char *argv[])
     while (__AFL_LOOP(1000))
 #endif
     {
-        file = fopen(argv[1], "r");
+        file = fopen(argv[1], "rb");
         assert(file);
         keymap = xkb_keymap_new_from_file(ctx, file,
                                           XKB_KEYMAP_FORMAT_TEXT_V1,
diff --git a/src/compose/parser.c b/src/compose/parser.c
index c1ec0f8..0f85a92 100644
--- a/src/compose/parser.c
+++ b/src/compose/parser.c
@@ -478,7 +478,7 @@ do_include(struct xkb_compose_table *table, struct scanner *s,
         return false;
     }
 
-    file = fopen(path, "r");
+    file = fopen(path, "rb");
     if (!file) {
         scanner_err(s, "failed to open included Compose file \"%s\": %s",
                     path, strerror(errno));
diff --git a/src/compose/paths.c b/src/compose/paths.c
index f2a28b4..f37c759 100644
--- a/src/compose/paths.c
+++ b/src/compose/paths.c
@@ -67,7 +67,7 @@ resolve_name(const char *filename, enum resolve_name_direction direction,
     if (ret < 0 || (size_t) ret >= sizeof(path))
         return false;
 
-    file = fopen(path, "r");
+    file = fopen(path, "rb");
     if (!file)
         return false;
 
diff --git a/src/compose/table.c b/src/compose/table.c
index cba577f..bdfb907 100644
--- a/src/compose/table.c
+++ b/src/compose/table.c
@@ -178,14 +178,14 @@ xkb_compose_table_new_from_locale(struct xkb_context *ctx,
 
     cpath = get_xcomposefile_path();
     if (cpath) {
-        file = fopen(cpath, "r");
+        file = fopen(cpath, "rb");
         if (file)
             goto found_path;
     }
 
     cpath = path = get_home_xcompose_file_path();
     if (path) {
-        file = fopen(path, "r");
+        file = fopen(path, "rb");
         if (file)
             goto found_path;
     }
@@ -194,7 +194,7 @@ xkb_compose_table_new_from_locale(struct xkb_context *ctx,
 
     cpath = path = get_locale_compose_file_path(table->locale);
     if (path) {
-        file = fopen(path, "r");
+        file = fopen(path, "rb");
         if (file)
             goto found_path;
     }
diff --git a/src/xkbcomp/include.c b/src/xkbcomp/include.c
index 56b51cc..8b97558 100644
--- a/src/xkbcomp/include.c
+++ b/src/xkbcomp/include.c
@@ -233,7 +233,7 @@ FindFileInXkbPath(struct xkb_context *ctx, const char *name,
             continue;
         }
 
-        file = fopen(buf, "r");
+        file = fopen(buf, "rb");
         if (file)
             break;
     }
diff --git a/src/xkbcomp/rules.c b/src/xkbcomp/rules.c
index 8d5c266..a4cfe49 100644
--- a/src/xkbcomp/rules.c
+++ b/src/xkbcomp/rules.c
@@ -411,7 +411,7 @@ matcher_include(struct matcher *m, struct scanner *parent_scanner,
         return;
     }
 
-    file = fopen(s.buf, "r");
+    file = fopen(s.buf, "rb");
     if (file) {
         bool ret = read_rules_file(m->ctx, m, include_depth + 1, file, s.buf);
         if (!ret)
diff --git a/test/common.c b/test/common.c
index 1a56521..3784d8b 100644
--- a/test/common.c
+++ b/test/common.c
@@ -270,7 +270,7 @@ test_compile_file(struct xkb_context *context, const char *path_rel)
     if (!path)
         return NULL;
 
-    file = fopen(path, "r");
+    file = fopen(path, "rb");
     if (!file) {
         fprintf(stderr, "Failed to open path: %s\n", path);
         free(path);
diff --git a/test/compose.c b/test/compose.c
index 89b0e7e..37d33bb 100644
--- a/test/compose.c
+++ b/test/compose.c
@@ -180,7 +180,7 @@ test_seqs(struct xkb_context *ctx)
     FILE *file;
 
     path = test_get_path("compose/en_US.UTF-8/Compose");
-    file = fopen(path, "r");
+    file = fopen(path, "rb");
     assert(file);
     free(path);
 
@@ -354,7 +354,7 @@ test_state(struct xkb_context *ctx)
     FILE *file;
 
     path = test_get_path("compose/en_US.UTF-8/Compose");
-    file = fopen(path, "r");
+    file = fopen(path, "rb");
     assert(file);
     free(path);
 
diff --git a/test/interactive-evdev.c b/test/interactive-evdev.c
index edf3919..79da5ec 100644
--- a/test/interactive-evdev.c
+++ b/test/interactive-evdev.c
@@ -445,7 +445,7 @@ main(int argc, char *argv[])
     }
 
     if (keymap_path) {
-        FILE *file = fopen(keymap_path, "r");
+        FILE *file = fopen(keymap_path, "rb");
         if (!file) {
             ret = EXIT_FAILURE;
             fprintf(stderr, "Couldn't open '%s': %s\n",