diff --git a/CMakeLists.txt b/CMakeLists.txt
index d039289..af0313c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ project(erc)
 
 include(sources.cmake)
 
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O3")
 set(CMAKE_COLOR_MAKEFILE OFF)
 
 if(DEFINED ENV{STATIC_ANALYSIS})
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 86c2386..421fcfc 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -8,7 +8,7 @@ set(CMAKE_COLOR_MAKEFILE OFF)
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHEADLESS -DTESTING")
 
 if(DEFINED ENV{STATIC_ANALYSIS})
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --analyze")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --analyze -g -O3")
 endif()
 
 if(CMAKE_C_FLAGS MATCHES "--analyze")