A one-component, moisture-curable, hot melt polyurethane adhesive composition which is a heat-softenable room temperature solid comprising: A) 50 to 98% by weight of a polyurethane prepolymer containing free isocyanate groups, the prepolymer being a reaction product of: 1) a mixture of polyols that comprises i) at least 35 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is liquid at 22°C; ii) at least 10 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is a solid at 22°C and exhibits a crystalline melting temperature of 70 to 130°C as measured by DSC according to the DIN 53 765 method; and iii) 5 to 20 weight percent, based on the weight of the mixture of polyols, of hydroquinone bis-(2-hydroxyethyl) ether; with 2) an excess of at least one organic polyisocyanate; B) 1 to 10% by weight of at least one polyoxazolidine compound having a molecular weight of up to 2000; and C) a catalytically effective amount of a catalyst for a reaction of water with an isocyanate group. A) 50 to 98% by weight of a polyurethane prepolymer containing free isocyanate groups, the prepolymer being a reaction product of: 1) a mixture of polyols that comprises i) at least 35 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is liquid at 22°C; ii) at least 10 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is a solid at 22°C and exhibits a crystalline melting temperature of 70 to 130°C as measured by DSC according to the DIN 53 765 method; and iii) 5 to 20 weight percent, based on the weight of the mixture of polyols, of hydroquinone bis-(2-hydroxyethyl) ether; with 2) an excess of at least one organic polyisocyanate; 1) a mixture of polyols that comprises i) at least 35 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is liquid at 22°C; ii) at least 10 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is a solid at 22°C and exhibits a crystalline melting temperature of 70 to 130°C as measured by DSC according to the DIN 53 765 method; and iii) 5 to 20 weight percent, based on the weight of the mixture of polyols, of hydroquinone bis-(2-hydroxyethyl) ether; with i) at least 35 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is liquid at 22°C; ii) at least 10 weight percent, based on the weight of the mixture of polyols, of at least one hydroxyl-terminated polyester that is a solid at 22°C and exhibits a crystalline melting temperature of 70 to 130°C as measured by DSC according to the DIN 53 765 method; and iii) 5 to 20 weight percent, based on the weight of the mixture of polyols, of hydroquinone bis-(2-hydroxyethyl) ether; with 2) an excess of at least one organic polyisocyanate; B) 1 to 10% by weight of at least one polyoxazolidine compound having a molecular weight of up to 2000; and C) a catalytically effective amount of a catalyst for a reaction of water with an isocyanate group.