diff --git a/CHANGELOG b/CHANGELOG
index a5e7864..132693b 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 * RECENT CHANGES
 *******************************************************************************
 
+=== 1.0.11 ===
+* Fixed clang build error.
+
 === 1.0.10 ===
 * The library now uses FreeType for rendering custom fonts, avoiding cairo cache.
 * The library now requires to call ws::init() before proceeding with other operations.
diff --git a/include/lsp-plug.in/ws/version.h b/include/lsp-plug.in/ws/version.h
index 9b0adb2..f310eb3 100644
--- a/include/lsp-plug.in/ws/version.h
+++ b/include/lsp-plug.in/ws/version.h
@@ -24,7 +24,7 @@
 
 #define LSP_WS_LIB_MAJOR            1
 #define LSP_WS_LIB_MINOR            0
-#define LSP_WS_LIB_MICRO            10
+#define LSP_WS_LIB_MICRO            11
 
 #if defined(LSP_WS_LIB_PUBLISHER)
     #define LSP_WS_LIB_PUBLIC               LSP_EXPORT_MODIFIER
diff --git a/project.mk b/project.mk
index c644261..2d7a9e5 100644
--- a/project.mk
+++ b/project.mk
@@ -23,5 +23,5 @@ ARTIFACT_ID                 = LSP_WS_LIB
 ARTIFACT_NAME               = lsp-ws-lib
 ARTIFACT_DESC               = LSP window subsystem core library
 ARTIFACT_HEADERS            = lsp-plug.in
-ARTIFACT_VERSION            = 1.0.10
+ARTIFACT_VERSION            = 1.0.11
 
diff --git a/src/main/freetype/FontManger.cpp b/src/main/freetype/FontManger.cpp
index 02c5b02..67713a3 100644
--- a/src/main/freetype/FontManger.cpp
+++ b/src/main/freetype/FontManger.cpp
@@ -699,7 +699,7 @@ namespace lsp
                 lsp_wchar_t ch      = text->char_at(first);
                 glyph_t *glyph      = get_glyph(face, ch);
                 if (glyph == NULL)
-                    return NULL;
+                    return false;
 
                 ssize_t x_bearing   = glyph->x_bearing;
                 ssize_t y_bearing   = glyph->y_bearing;
@@ -711,7 +711,7 @@ namespace lsp
                     ch                  = text->char_at(i);
                     glyph               = get_glyph(face, ch);
                     if (glyph == NULL)
-                        return NULL;
+                        return false;
 
                     y_bearing           = lsp_max(y_bearing, glyph->y_bearing);
                     y_max               = lsp_max(y_max, glyph->bitmap.height - glyph->y_bearing);