diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 9645cba768..f2c3e0e99a 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -120,7 +120,13 @@ if(SHARE_LIB_OBJECT AND CMAKE_VERSION VERSION_GREATER_EQUAL 3.12)
     set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
   endif()
   if(CURL_HAS_LTO)
-    set_target_properties(${LIB_OBJECT} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
+    if(CMAKE_CONFIGURATION_TYPES)
+      set_target_properties(${LIB_OBJECT} PROPERTIES
+        INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
+        INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
+    else()
+      set_target_properties(${LIB_OBJECT} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
+    endif()
   endif()
 
   target_include_directories(${LIB_OBJECT} INTERFACE
@@ -152,7 +158,13 @@ if(BUILD_STATIC_LIBS)
     set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
   endif()
   if(CURL_HAS_LTO)
-    set_target_properties(${LIB_STATIC} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
+    if(CMAKE_CONFIGURATION_TYPES)
+      set_target_properties(${LIB_OBJECT} PROPERTIES
+        INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
+        INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
+    else()
+      set_target_properties(${LIB_OBJECT} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
+    endif()
   endif()
 
   target_include_directories(${LIB_STATIC} INTERFACE
@@ -189,7 +201,13 @@ if(BUILD_SHARED_LIBS)
     set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
   endif()
   if(CURL_HAS_LTO)
-    set_target_properties(${LIB_SHARED} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
+    if(CMAKE_CONFIGURATION_TYPES)
+      set_target_properties(${LIB_OBJECT} PROPERTIES
+        INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
+        INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
+    else()
+      set_target_properties(${LIB_OBJECT} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
+    endif()
   endif()
 
   target_include_directories(${LIB_SHARED} INTERFACE