diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index f8e1da59..64936162 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -5,17 +5,20 @@ include_directories(${CMAKE_SOURCE_DIR}/src)
 include_directories(${CMAKE_SOURCE_DIR}/example)
 
 find_package(PkgConfig REQUIRED)
-pkg_search_module(GLFW REQUIRED glfw3)
-include_directories(${GLFW_INCLUDE_DIRS})
+#pkg_search_module(GLFW REQUIRED glfw3)
+#
 add_compile_options(-O2 -Wall)
+find_package(OpenGL REQUIRED)
+find_package(glfw3 3.3 REQUIRED)
+include_directories(${GLFW_INCLUDE_DIRS})
 
 add_executable(dump dump.c)
 add_executable(example1 example1.c)
 add_executable(example2 example2.c)
 
 target_link_libraries(dump m )
-target_link_libraries(example1 m GL ${GLFW_STATIC_LIBRARIES})
-target_link_libraries(example2 m GL ${GLFW_STATIC_LIBRARIES})
+target_link_libraries(example1 m ${OPENGL_LIBRARIES} glfw)
+target_link_libraries(example2 m ${OPENGL_LIBRARIES} glfw)
 
 #
 # if fuzzing is enabled
diff --git a/example/example1.c b/example/example1.c
index 582e4ccb..0de4de44 100644
--- a/example/example1.c
+++ b/example/example1.c
@@ -244,7 +244,7 @@ int main(int argc, char *argv[])
 		filename = argv[1];
 	g_image = nsvgParseFromFile(filename, "px", 96.0f);
 	if (g_image == NULL) {
-		printf("Could not open SVG image.\n");
+		printf("Could not open SVG image '%s'.\n", filename);
 		glfwTerminate();
 		return -1;
 	}
diff --git a/src/nanosvg.h b/src/nanosvg.h
index 4797afd9..971e6e29 100644
--- a/src/nanosvg.h
+++ b/src/nanosvg.h
@@ -1153,10 +1153,16 @@ static const char* nsvg__parseNumber(const char* s, char* it, const int size)
 		s++;
 	}
 	// integer part
-	while (*s && nsvg__isdigit(*s)) {
+	// leading zero
+	if (*s && *s == '0') {
 		if (i < last) it[i++] = *s;
 		s++;
 	}
+	else
+		while (*s && nsvg__isdigit(*s)) {
+			if (i < last) it[i++] = *s;
+			s++;
+		}
 	if (*s == '.') {
 		// decimal point
 		if (i < last) it[i++] = *s;