diff --git a/proj.pc.in b/proj.pc.in
index c829f078..4c5df1e1 100644
--- a/proj.pc.in
+++ b/proj.pc.in
@@ -8,7 +8,7 @@ Name: PROJ
 Description: Coordinate transformation software library
 Requires:
 Version: @VERSION@
-Libs: -L${libdir} -l@PROJ_OUTPUT_NAME@
+Libs: -L${libdir} -l@PROJ_LINK_LIB_NAME@
 Libs.private: @EXTRA_LIBS@
 Requires.private: @EXTRA_REQUIRES@
 Cflags: -I${includedir}
diff --git a/src/lib_proj.cmake b/src/lib_proj.cmake
index cfde386a..07700dde 100644
--- a/src/lib_proj.cmake
+++ b/src/lib_proj.cmake
@@ -533,8 +533,14 @@ if(WIN32)
         endif()
         set(PROJ_OUTPUT_NAME "proj_${PROJ_VERSION_MAJOR}" CACHE STRING "Name of the PROJ library")
     endif()
+    if(CMAKE_BUILD_TYPE STREQUAL "Debug" AND NOT MINGW)
+        set(PROJ_LINK_LIB_NAME "proj_d" CACHE INTERNAL "Name of the PROJ link library")
+    else()
+        set(PROJ_LINK_LIB_NAME "proj" CACHE INTERNAL "Name of the PROJ link library")
+    endif()
 else()
     set(PROJ_OUTPUT_NAME "proj" CACHE STRING "Name of the PROJ library")
+    set(PROJ_LINK_LIB_NAME "${PROJ_OUTPUT_NAME}" CACHE INTERNAL "Name of the PROJ link library")
 endif()
 
 set_target_properties(proj PROPERTIES OUTPUT_NAME ${PROJ_OUTPUT_NAME})